It was the policy of the ELC where I worked to keep children in the 0-2 room util they were fully TT... they didn't mind the odd accident though (in the 3yo room). I agree with the health aspect... most kinder rooms are just not set up to deal with a continuous stream of dirty nappies... and yes, the ratio there wouldn't support it from a safety point of view.

But I know that the local council run kinders can't exclude a child because they are not TT. I was speaking to a centre director about it last week. My 3yo is almost TT and I'm sure by the start of next year he will be fine.