I just turned 28 and I've never had one. My mum had cervical cancer when I was around 13/14 so she's always bugging me about it.
I guess the reason may be because I don't have a regular doctor, we just go to the local medical clinic and see whoever is on - and there is no way in hell I'd be comfortable with ANY of them giving me a pap smear
Maybe one day I'll get one. Who knows.