As we have started to float this idea to parents, some are immediately horrified of the idea, but feel better when they realize it would only be one of their children at a time. We have also had the question - what if the parents are helping in the classrooms (and thus can't be in the sanctuary with their kids)?
We have a lot of logistics to think about! I didn't dream up this idea - I've read about it here on this exchange so someone must be doing this already - tell me how it works!
--Carol