Just deleted my Twitter account.
Stopped using Facebook long ago, and the only reason I don't ditch Blogger is that I'm not quite ready to completely give up the blog, but the alternatives I know of all are all for pay. I see no reason to shell out $$$ for a non-monetized blog as, well, obscure as this one. (Or even ¢¢¢.)
Unfortunately, if you want a smart phone these days, you options are to get involved with one of two evil Commifornia Big Tech outfits.
Somebody -- Kevin Baker at Gun Blogger Rendezvous, maybe -- had a t-shirt that was lamenting to the effect of having been a science fiction fan all his life, and getting the dark dystopian future of his teen aged years.
Heinlein's Crazy Years aren't even fully launched yet, and I'm already tired of them.