It ain’t free and is sometimes not possible at all. At work, I’m admin of everything, by Meta’s own privacy policy I’m not allowed having an account which is not mine. Not having a WhatsApp account is very hard these days. I manage to do it but it ain’t free in the sense that I’m missing on a lot of group chats I would otherwise be in, and sometimes I’m still in it via my wife. Not being on a social network also prevents me from seeing photos of me posted by someone else, where I might be tagged! It’s never as easy as “if you don’t like it just don’t use it,” especially for social networks.