My 2.5 year old has expressed a lot of interest, but he does not yet possess the fine motor skills needed to put one together. Part of his problem, I think, is that he is denying his left handed tendency. For now, we stick to board puzzles and he's finally able to do the harder ones without pegs, so I'm happy enough with that. I actually can't stand puzzles (severely challenged when it comes to visual perception!) but I pretend to like them so my ds does not wind up like me!