On Girls, Boys and Transformers

My son received a transformer toy the other day for his birthday. The toy transforms between a robot and a hovercraft. Both my daughter (3) and son (5) play with the toy, however my daughter prefers it to be in its humanoid form where she calls it her baby robot and puts a blanket on it, and changes its diaper and gives it food, where my son prefers it to be in the hovercraft where his Hulk toy can ride on it, and shoot the lasers and blow stuff up. The difference between boys and girls is hard wired: boys are destructive and girls are nurturing.