I still have a facebook account, but I never post updates on there, and only a few of my friends still do, so I just use it to keep up to date with what they’re doing. To only add ‘content’ is in local groups (eg residents’ association etc). I might use facebook messenger once or twice a year if someone messages me, but would never use it out of choice.
I have a twitter account, but it’s mainly to keep up with what’s happening in the world. If I relied on broadcast or UK newspaper sites, I’d be a lot less informed. Twitter’s fine if you curate your feed and follow the right people.
I use Whatsapp group to chat and organise things with friends and family. I could do without the tedious meme sharing that has crept into it amongst people of my parent’s generation though.
I use normal text messaging to chat with my girlfriend, mum and brother.