Hacking/bypassing age verification systems?

A few weeks ago, following my VPN deciding that it wanted to end up in a different state that enforced age verification laws on adult websites. I was presented with a cam site trying to hand over personal data, i didn't want to do this and could easily bypass it, but i decided to look into it anyway since it could become a market in the future.

I wonder if you could use MP4 videos/images to bypass the "age estimation" features, unfortunately, i think it was detecting my virtual cam or my browser wasn't working for some reason, however, i am sure it could be possible.

Has anybody tried? I seems like KYC verification so i guess it would be easy to bypass, even easily since with age estimation, you won't need ID...