Suppose, for the sake of argument, that people encountered each other socially by presenting themselves as avatars of their choice. Suppose further that this mode of interaction were to achieve mass acceptance, so that everyone you know was visible primarily as their chosen avatar.
What would happen, over time, to the appearances of those avatars? Would they be wildly different from one another, reflecting the incredible visual diversity of the human condition?
Or would they converge to some idealized norm? Would everyone end up choosing an appearance oddly reminiscent of some famous actor, model or pop musician?
I hope for the former. Alas, I fear we will more likely end up with the latter.