Hello @elixir57, and welcome to steemit, you will find many artist on steemit of pretty much every caliber, and every for, although I am not sure I have seen a sculpture on here yet, doesn't mean they are not here, just that in my steemit wanderings I have found one.

There are a lot of people and various types and ages on steemit, as for your children, like any activity on line they do monitor them closely. I do not think it is against policy, but I am not sure.

I found your post because @freedomshift featured you in his "Pay it Forward" post. Your post was within 12 hours of pay out so I upvoted your comment to him. Enjoy your time on steemit if you ever get stuck and need help look for an @newbieresteemday post or one of its members and they will try to provide help. I am a member of them.