I was worried about that as well, but now that he's nearing 13 months the kids are having a great time together! Both the older two help watch James, taking special care and attention to make sure he doesn't put anything in his mouth etc. This lead of course to them showing James how to play with his toys, which in turn lead to them playing with him (right down to rough housing carefully! LOL) Not to worry Momma! They will find their place