My biggest issue is there are some people I really want to follow who do youtube unfortunately. Other than that, I could see moving off the grid completely more or less.
I do toy with leaving Youtube though and just taking the hit, would be nice to not participate in ANYTHING the big tech companies produce.
I never really got onto those places. I had a facebook for a small while due to peer pressure but quickly got really tired of how people I knew acted on there. That said I do go to the sites if i'm linked there sometimes because I don't mind giving them that information. Mostly I leech their videos with youtube-dl though rather than visit the site.