I have a Facebook account - it gives me a way to keep in touch with kids and relatives who are physically distant. I closed my Twitter account a long time ago as it stopped being relevant to me once I changed careers and semi-retired.

I do not accept Facebook friends very often and rapidly unfriend folks who send me stuff that is irrelevant or intrusive. Same thing for groups.

It’s useful to me, but I have experience with folks and organizations who abuse the medium. I ditch them as quickly as I am able.