I think lots more women bf toddlers than admit to it. There are two others at the small playgroup I go to, and those are only the ones I know about!
RE: tandem feeding. I'm 5 months pregnant, and DS is nearly 20mo. We've been down to one last bedtime feed for over 6 months and I was hoping that DS would have self-weaned by now, spurred on by my pregnancy. But he's powering his way through the changing taste and the diminishing quantity of my milk, and tandem feeding is becoming more likely.
The thing is, I don't really want to wean him off something that he likes and that does him good when he's not feeling well. He never feeds during the day unless he's ill, but he really likes his bedtime feed. I have been (somewhat half-heartedly) trying to encourage him to wean off that feed, which mostly involves offering him cocoa instead. Tonight he batted away the cup and asked for 'nunny' (no idea where he got the word from BTW, but it's better than booby!) so I'm not hopeful he's any more enthusiastic about this than I am.
My only concern with tandem feeding is that I'd like him to stay over at MIL's within the next few months, so that he can get used to staying over before I go into labour. And DH thinks that it's a bit unfair to expect MIL and PIL to cope with DS not getting his bedtime feed, as well as with the new environment, different faces, etc. I can definitely see his point, but because I think that tandem feeding would probably be OK, it just feels to me as though I'd be weaning him just for the sake of a couple of nights when I wouldn't be there.
Apologies for the dithery post - I think that when you're careering towards having to make a decision one way or another about weaning, no matter what the child's age is, it all gets a bit dithery - I know it did at 3 mo, 6 mo and 12 mo - which were the previous three cut-off points I'd given myself!