When you turn 30 everyone will be looking at you out of the corner of their eye. You will just have to get used to it, or get a conventional case of the clap...None of the anal pruritis. Conventional.
Alot of the folks I hang out with are in their 30s and most of them are still single.
No one even blinks an eye.
Though for kicks, I'll play pranks on them trying to make them feel paranoid.
I'm guessing that outside of NYC, its a strange thing, but in NYC, being 30 something and single isn't unusual, or even out of the ordinary, so no one cares.