The legless avatars seem to be mostly a VR thing.

It would be cool if you could mix the two. What if you could meet a group of friends at a coffee shop but if one of your friends was out of town you could have them join you virtually?

The avatar may or may not have legs. We could leave that choice up to the individual. Maybe they want legs. Maybe they want to be a little floaty ghost. Maybe they want to present as a talking frog.