When you look at the IG phenomenon it is very very odd. Just existing and proving you exist gets 'likes' and fawning praise.
Years ago when you visited someone's house they might foist their dullest photos on you - but even then they wouldn't bother with feet, drinking, cycling, bottles of what cosmetics they use.
I'm sure there must be a sci-fi dystopian book written years ago predicting the utter vacuousness and vanity of humans, plus the constant craving for praise and validation from strangers. And promoting the normalising of invasive treatments in the pointless pursuit of youth. Not that anyone would've believed such a book - it would be like a horror story.