- Nobody I know uses them, not my friends, not my parents, not my brother, not my workmates, no one. The only person I know who uses any of them is my teenage sister.
- Even if they did use them I don't have time to keep them up-to-date
Actually, I've just thought of a third: who wants to know what I'm up to in minute detail all-day everyday (aside from my mother)?
Maybe I'm too old to understand the attraction, maybe I don't have enough digital-literate friends to make it work, maybe I just don't have enough friends, but while kids with plenty of time on their hands may find them great for socialising while sat in their bedrooms I prefer to keep things separate. If I'm socialising I go to friends', they come over or we go somewhere. When I'm not out, I want my own space. I don't even use IM except at work (intra-office, great for quick checks with workmates and transferring files).