I guess I've always been a bit ideological, also not being on Facebook after the numerous negative examples of how they treat customer data, and so I exclude myself from WhatsApp that is ubiquitous in my country sadly. There's one or two people I would have more contact to, but don't, because they don't think it's worth installing any one of the many messengers I've got installed; it's apparently on me to install the one thing that we all agree is suboptimal at best. Yeah, no thanks, I'm okay over here

Similarly for Twitter. It was an independent company run by people who had, as far as I heard, fine intentions. Like making money and being a good platform can go together, though iirc they weren't great at the former. Then Elon came along and tore down the ethics standards. Idk, I just don't need to be part of that when people have been developing perfectly good alternatives in the meantime. It took a few years but by now I'm not actually sure who's still on Twitter but not (at least also) on Mastodon that I'd like to talk to, but I'm sure there'll be some people if I look for them. I just don't know that it's worth it

I also don't like that it's now a closed website; not really part of the web, idk why they bother having URLs still if you can't view them without signing up first. Not really a great medium for posting/announcing things anymore either

Of course, if you're happy to stay put with your friends, I'm sure you'll be just fine as well without needing to experience too much of what goes on outside of that community. You could use WeChat or anything else for that purpose as well

The only thing I keep recommending to people is to always have at least 2 options: WhatsApp and another messenger. GitHub and some git mirror. Twitter and another microblogger. Then people can choose, communities can move gradually without disruption, you're harder to deplatform, service disruptions aren't as big a deal, and the platforms have to actually compete to be one's choice of where you go first to post and read things