I've never had any social media accounts and don't know how Facebook or Instagram even works despite being 28. I never felt like I missed out on anything but I'm certainly an outlier. I do remember a time when everybody just suddenly stopped using MSN Messenger and switched to Facebook but I think my closest group of friends kept MSN/Skype so I had no reason to change. Then Whatsapp came about and that's all I've used until today.
I have a reddit account which I use it to browse but tend to avoid reading the comments because in the past few years, no matter the subreddit, they've become just another platform for childish, hateful americanised political discourse