Interesting question, but no way this could be implemented fairly.

Your mom ever say, “Stop making that face or it will freeze that way!”? Well, there’s truth in that, especially as we age. Couple of anecdotes:

Saw my ex-wife for the first time after a custody battle lasting a couple of years. I was horrified! Instantly thought, “There is a woman who never smiles.” Her facial muscles that control smiling had atrophied to the point her face was sliding off.

Contrast her with a woman I was dating that smiled constantly. She smiles so hard her eyes turn into slits, so many teeth a chimp would feel threatened. She had well developed muscles under her eyes (don’t know the anatomical terms). Even her slight wrinkles showed it. Ever heard of laugh lines?

My wife smiles almost as hard, same facial muscles. Former gf was white, wife is Asian. I can see the resemblance in facial structure though they share nothing else alike.

Even at 54 I’m not too wrinkly (it’s coming!). Just looked in the mirror. There are clear lines between my eyebrows from frowning too much. Tried frowning, smiling, blank expression, little difference, those lines are there for good. Apparently I am a man who spends a lot of time frowning.

So while there’s truth to the thing, I cannot imagine a trustworthy business case for this. For example, maybe I frown a lot because I’m always concentrating on solving tough problems. Not the case here, I’m stressed and angry, but you get the idea. Maybe my ex-gf smiled so hard to compensate for being a bitch? Again, not the case, but still, I bet you get it. Maybe my wife smiles so much because she’s a contented human being? That is the case.

And having said all that, how in the hell could this be used to judge a young person’s personality?! They haven’t had time to develop or atrophy facial muscles, let alone get wrinkles.

What about dark-skinned people who are hard to photograph, having less contrast and more subtle lines? Would pale people fare worse, especially with age?

(gods this is getting long-winded) Humans devote a load of processing power to judging the tiniest facial expressions. I cannot see AI coming with better results than our gut instincts.

tl;dr: Yeah, I can see some science coming out of this, it’s not phrenology. I see no way it’s useful IRL.

Oooh! Oooh! This is an easy one.

No.

Fuck yeah! That’s only thing I’ve heard people say! They only want to be watched more. They fucking love it!

That sounds like a good way to automate discrimination, also like it should be illegal regardless