In theory, sure its very simple to hold a 30 lb child still. Now lets make the very accurate assumption that children don't sit still. Within minutes that child will want to get up and walk around. Now again, in theory you could restrain the child, forcing them to sit still in front of the computer. Hmm and you spoke of supervision, I suppose your idea of supervising is restraining the child so you can go about your day. So lets skip that and assume we are now restraining a child that doesn't want to be. Anyone who has children or has been with children know that this will result in crying and screaming. So now you're having a skype call with your parents, whom you can't hear because your child is thrashing around screaming and I'm sure they enjoy seeing their little grandchild being physically restrained and screaming. Yaaaay fun video chat with Grams and Gramps! Or maybe I'll just go on an internet forum and judge parents for being lazy because I have no experience with children at all. This is anonymous because I really don't care enough to log in, but had to point out the judgmental nature of your character.