said by Zyncotl :

I downloaded the Trial for my 3 and 4 year to play with. I don't actually want the game but I am looking to get the full creature creator so they have more options to build with. They get a kick out of making critters and making them do things.

said by knightry :

Just be careful not to let them play when you're not around, or they might takes things too far...
(youtube clip)

said by Zyncotl :

With a 3 and a 4 year old (girls as well) I am never 'not around' and kids of that age aren't thinking about sexual organs or anatomical items. It's only immature adults and juveniles that feel the need to build creatures like that... or post them in forums.