Sure, normally I'd rather someone like my characters enough to draw them, but if you need help drawing stuff than children are a good challenge.
Yeah, I'm not very good at drawing children myself, lol. Draw'em however you like, ages from left to right are 9, 9, 6.
Edit: Lol, I just realized how douchey I sound. Sorry, I meant to say you can use them if help your drawing inspiration, feel free to skip this post if they're not doing anything for you. xP