It is great to offer free childcare to all citizens, but if those childcare facilities are inadequately resourced the quality of care will decline.
It looks like it's 1:6 until kids are 27 months, at which point the ratio becomes 1:10. When kids are 3-4 the ratio is 1:12, and when they're 5 and up, the ratio is 1:15. These are numbers from 2011, so not sure how that's changed over time.
It is great to offer free childcare to all citizens, but if those childcare facilities are inadequately resourced the quality of care will decline.