M.L.
I don't know, it sounds like things that just happen with age to me. He's probably going to learn to do things like pick his nose and touch toilet water either on his own or from another kid regardless of what daycare he goes too. As far as not playing as much w toys/books, if he's at daycare for long periods of time, he's most likely over stimulated and not wanting to play as much at home right now.