That is a very common issue. I try to explain it to parents with the idea that at home when a child says they have to pee that the parent drops everything and rushes to spend one on one time with them in the bathroom - some sing, read stories, just chit chat whatever. But at daycare if the child says they have to pee - yes they get taken to the bathroom right away but I can not stand there and entertain them I have other kids to tend to. When they say they have to pee it means being separated from their friends, the toys, what was going on etc. Not exactly the same incentive for sure.

I do pullups here and we just treat it matter of factly. We all try potty at various intervals - between events and if they go great and if not well I make a mental note to take that child at the next earliest convenience sort of thing for a second try. No rewards and no potty dances just this is part of growing up and what I now expect from you.