It actually isn't, have you ever tried attending any real life function? An account with Meta is almost a requirement to even get in the door.

Uh, yes? What kind of functions are you trying to attend? If you go to C3 and show people your Facebook account, you will rightfully be mocked (unless it's an admin account you're not supposed to have).

Pretty much any major gathering of people older than 25 will have people asking for your facebook/instagram. At least in my experience. This includes real life functions like fundraisers, meet-ups, club events, anything involving a charity or an official event. As someone without a Meta account, I'm just as shocked by it as anyone else.

Thats insane. I have never been carded for a meta account IRL.

If you live outside of a city in America you will be shocked how many community events are organized and advertised exclusively on Facebook, how many local businesses eschew any online presence aside from a Facebook page, etc. Some towns got into the internet in 2012-2015 and basically got stuck there.