If you were to chat with someone daily for a year, you'd never see their hair grow (or get cut) for example but then I suppose we never actively think of these things, just notice when they change.
When they achieve that, it will be quick and simple to update your scan.
The people that keep an old scan at that point are the same people that also keep an old photo as their profile picture anyways, and it’s often not due to the technology.
Some are too lazy to update profile pictures no matter how simple it is. Some people don’t know how to do it no matter how simple, but that’s more rare. And some people purposely choose to keep an old photo because they want to be seen the way that they once were rather than the way that they are now.
Me for one, I will keep my 3d scan up to date every now and then. Say, every few months or so. Just like how I currently update my profile picture every few months on platforms that I actively use. (For example, I’ve been at my current company for about a year now, and in that time I’ve changed my Slack and company GitLab profile pics one time – from the picture I chose when I joined, to a new up to date photo).
Anyway. I am sure that if people stick to old scans, the Metaverse companies will eventually counter that by virtually “aging” the scanned models that people use. So that even if you don’t change your scanned model, the Metaverses will add grey hairs, wrinkles, etc to it over time.
It's just a matter of time before this stuff is incorporated into what we're seeing here.
[1] https://screenrant.com/rdr2-hair-growth-length-time-tonic-sp...
[2] https://www.watchmojo.com/articles/10-most-realistic-feature...
They talked about this in the recording, calling out (not/)shaving and weight fluctuations may or may not be reflected.
My own thoughts: we partially already there, considering people hardly update their static avatars/profile/professional headshot pictures on a weekly basis . We're inching towards the "Residual Self-image" of the Matrix universe