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.