best age to start childcare: what the evidence actually says

6 weeks to 6 months

in Australia, childcare centres can accept babies from as young as 6 weeks old. in practice, very few families start this early — most have access to at least some paid parental leave, and the emotional readiness of both parent and baby is a real factor.

that said, some families don't have a choice. single parents returning to work, casual workers without leave entitlements, or families under financial pressure may need care earlier. there is no evidence that quality childcare at this age causes harm.

what to expect:babies under 6 months spend most of their day sleeping, feeding, and being held. a quality centre will follow your baby's individual routine — not a one-size-fits-all schedule. the 1:4 educator-to-child ratio means each carer is responsible for a maximum of four babies, which allows for responsive, attentive care.

practical considerations:baby places are the hardest to find and the most expensive. fees for under-1s are typically $10-30 per day higher than other age groups. if you think you'll need care before 6 months, get on waitlists during pregnancy — in high-demand areas, you may need 6-12 months of lead time.

the parent factor:settling a very young baby into care can be emotionally intense for parents, particularly if you're still recovering from birth or breastfeeding. many centres accommodate breastfeeding parents who want to come in during the day, and all centres will store and warm expressed milk.

6 to 12 months

this is the most common starting age in Australia, and it aligns with the end of government paid parental leave (currently 22 weeks, increasing to 26 weeks by july 2026). most families who use childcare start somewhere in this window.

what to expect:babies at this age are becoming more alert, social, and curious. they're starting to sit, crawl, and explore their environment. they recognise familiar faces and may show separation anxiety — which is a normal developmental milestone, not a sign that childcare is wrong for them.

separation anxiety typically peaks around 8-10 months. your baby may cry at drop-off for the first few weeks. this is hard on parents, but centres deal with it every day. a good educator will settle your baby quickly after you leave — and most centres will call you if your child is genuinely distressed (not just having a brief cry).

practical considerations:the 1:4 ratio still applies (it covers birth to 24 months). babies this age are starting solids, so you'll need to discuss food preferences, allergies, and how the centre handles mealtimes. most centres provide meals from around 6-8 months, but some ask parents to supply food for the youngest babies.

settling in:most centres recommend a gradual orientation — a few short visits building up to a full day over 1-2 weeks. don't rush this process. babies who have a calm, predictable transition tend to settle faster in the long run.

12 to 18 months

starting at 12-18 months is common for families where one parent has taken extended leave, or where informal care (grandparents, family) has bridged the gap for the first year.

what to expect:toddlers at this age are walking (or close to it), starting to communicate with gestures and early words, and becoming increasingly independent. they're also deeply attached to their primary caregivers, which can make the transition feel harder — but it's also the age where they start to genuinely benefit from social interaction with other children.

the social factor:around 12-18 months, children move from "parallel play" (playing alongside other children) to showing genuine interest in peers. they watch, mimic, and start to interact. childcare provides a rich social environment that's difficult to replicate at home, especially for first children or families without a large social network.

practical considerations:the 1:4 ratio still applies until 24 months, so staffing and costs remain similar to the baby room. some centres transition children to a "toddler room" around 15-18 months, which can mean a change in educators and routine. ask your centre about their room transition policy and how they handle it — a gradual transition with familiar educators makes a big difference.

separation anxiety round two: many toddlers go through a second wave of separation anxiety around 15-18 months. this is normal, even for children who have been in care since they were babies. consistency, a calm drop-off routine, and trusting your educators are the best tools here.

18 months to 3 years

starting childcare at 18 months to 3 years is increasingly common, particularly with expanded parental leave and the growing availability of preschool programs. many families use this window to start part-time care (2-3 days per week) as a bridge to preschool.

what to expect:children in this age range are developing rapidly — language is exploding, they're becoming more independent with eating and dressing, and they're ready for more structured play and learning activities. they genuinely enjoy being around other children and start forming early friendships.

the ratio changes: from 24 months, the educator-to-child ratio shifts from 1:4 to 1:5. from 36 months (3 years), it moves to 1:11 in most states. this means toddler and preschool rooms are larger, fees are typically lower, and places are generally easier to find.

toilet training: this is a practical consideration that comes up a lot. most centres are experienced with toilet training and will work with you on it. you do not need your child to be toilet trained before starting childcare — educators handle nappies every day. but if your child is showing signs of readiness, starting childcare can actually help because they see other children using the toilet.

preschool readiness: children who start care at 2-3 years are well placed to transition into a funded preschool program (typically offered from age 3 or 4, depending on your state). many long day care centres include a preschool program within their service, so your child may not need to change settings at all.

what the research says

the biggest Australian study on this topic is the longitudinal study of Australian children (LSAC), which has tracked thousands of children from birth. here's what it and other research tells us:

• quality matters more than timing. children who attend high-quality childcare — regardless of when they start — show developmental outcomes that are comparable to or better than children cared for exclusively at home. the key markers of quality are educator qualifications, low ratios, and warm, responsive caregiving
• there is no evidence of harm from early entry. the LSAC data does not show negative effects on attachment, behaviour, or cognitive development for children who start quality childcare before 12 months
• social and language benefits appear from age 2. children who attend childcare from around age 2 show measurable benefits in social skills, language development, and school readiness compared to children with no group care experience
• hours per week matter.some research suggests that very long hours (consistently more than 40-45 hours per week) in low-quality care can be associated with increased behavioural issues. the emphasis is on "low-quality" — the combination of long hours and poor care is the concern, not long hours in quality settings
• family environment is the strongest predictor. across all the research, the home environment — parental warmth, reading to children, responsive caregiving at home — remains the single strongest predictor of child outcomes. childcare supplements this; it doesn't replace it

the bottom line from the evidence: if you need or want to use childcare at any age, focus your energy on finding quality care rather than agonising over whether the timing is "right."

how to decide what's right for your family

rather than looking for the "perfect" age, consider these practical factors:

• parental leave.how much leave do you have? if you have 6 months, starting at 6 months is logical. if you have 12 months or more, you have the flexibility to start later. work with what you've got
• finances. childcare is expensive, especially for babies. use our CCS calculator to estimate your out-of-pocket costs. for some families, starting later (when ratios shift and fees drop) makes financial sense
• availability.baby places are scarce. if you're in a high-demand area and want care before 12 months, you may need to start looking during pregnancy. the "best" age is partly determined by when you can actually get a place
• your child. some children are naturally social and adaptable. others take longer to warm up to new people and environments. neither temperament is better — but knowing your child helps you plan the transition
• your needs.parent wellbeing matters. if you're struggling with isolation, burnout, or mental health, starting childcare — even part-time — can be a positive step for the whole family. you don't need to be at breaking point to justify using childcare
• informal care options. grandparents, family day care, nannies, and au pairs can fill gaps or serve as a stepping stone. some families use a mix — informal care for the first year, then formal childcare from 12-18 months

frequently asked questions