As I said in an earlier post, that's what I found out when I tried the "dating" bollocks in the UK (I tried local papers 'cos there wasn't any real "Internet-Dating" to be done in the UK when I was younger). The large majority of people advertising that were about the same age as me (20ish) were female single-parents with offspring. Scary.
The main problem (for me at least) was that they were also mostly high-school drop-outs; people who dropped out after 16 (post GCSE, pre A-level)... and I got the impression that they couldn't hold a conversation if it had a strap. Not that I actually enjoy conversation particularly but I don't want it to hurt my head when I do get spoken to
IMHO if you're a girl and you have a baby at 16 or whatever, you do pretty much fall into the "stupid" category, or at least the "naive" or "I don't think about consequences" or "I don't want a life myself" or "I couldn't face an abortion" (somebody here is gonna
love that one

) or just "plain irresponsible".
Having said that, I went out with a single-parent (divorced) for 8 months or so (found through a friend rather than through a dating jobby). She had two kids: a girl of 4 and a boy of 7 and she was rather older (ok, 9 years older) than me. It was actually pretty cool being an "honourary" father... kids have the same sense of humour I do

But then the kids were old enough to reason with. I wouldn't want to cope with somebody else's baby myself/personally (not through choice at least).
Pity she turned out to be a thieving, money-grabbing bitch after our relationship, really.
Anyway, a year older is no big thing, IMHO.
I'll go hide now.
Cheers,
Ref.