Never been a big fan of social networking sites. But for some, it's a "necessary evil". Maybe the internet in general is?
Some people seem to be too attached to their "feeds", and I find that spending too much time online, especially if you're reading negative content, or wasting your time seeing what other people are doing can be draining. Just seeing how "well" others appear to be (even if they're merely fronts) can take a toll on my mood.
That's why I limit my time on social media, especially Facebook (which I really don't like, and have left it many times, only to be drawn back, because that's where all my friends are, and they apparently have problems with exchanging email addresses instead

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The older folks in my life think most, if not all technology these days are bad, and kids are hopeless (definitely some millennial-bashing there), and while I can definitely see what they're saying, I think it all depends on how you use things (if you choose to at all), and how often. I guess I'm an odd mix of traditional and modern (at least in my ways of thinking)...
Social media, while it's not something I like anymore, is quite necessary at times (especially if you're an artist/musician or whatever trying to put yourself out there).