A curious thought. I recently have become obsessed with the childish trait, maybe because I'm childish too (I sleep with a stuffed animal... Don't laugh!) and maybe because they're just cool. I somewhat like inventing but I was playing one of my childish sims when I asked myself: "Does being childish help with the creation of toys?"
Quite understandable for me because I think the person who plays with a lot of toys would be good at making them as they know how they work. Maybe I'm going a little to deep in this or maybe I'm just crazy, but I think that it does do something. What do you guys think (or know)?