There are no age restrictions.

With that said, conqueror worm, has a good suggestion about setting up a time for an "adults only" chat ... not sure how one enforces access to that though.

A better approach would be to use the Cafe Members chat, which is coming soon - Cafe Members tend to be age 18+ and those who aren't (currently not aware of any) will more likely respect the rules about not entering a designated "adult only" area.

Ron