It sounds like I do similar to you 5LM in terms of prep work. I think it is a valuable lesson for the younger ones to see older kids training. We talk about it lots and practice how we ask to go potty and I have a boy and a girl potty book in duplicates which are out all the time. They can read them independently and I also read them to the group and 1 on 1 with training children encouraging them to tell me what happens next. It's cute as at the end of the book they say goodbye to pee pee and poopy as they flush and every child I have trained says goodbye every time now lol. I have additional copies that I lend to parents too so they can reinforce it at home. So far they have served me well