I am old and use all those tools I don't understand why anyone would want to isolate themselves from the greatest tools for social change. Doesn't mean I like them but at least I can take part in making decisions that affect everyone.
i'm no luddite, but a hermit. And I have no need or wish for further human contact. The internet, where I obtain information, I love, but people I don't.
I'm an old fart as well. I have FB... but, never got into Twitter. Never saw the reason since everyone I know has fb. Not even sure if I can figure Twitter out. Took long enough to figure FB. LOL! Sides... as Mouldy said... I obtain my info from the net... no care to deal with people either.