We need data points on nursing to sleep

I've gotten some emails recently from moms who have been nursing their babies to sleep, but are getting lots of pushback from other people about how they need to stop or their kids will "never learn to fall asleep on their own." I know we all know this is ridiculous, since no one goes off to college with their mom along. But I thought it would be helpful if we had some data points about what would actually happen if you just went with it.

My oldest needed to nurse to sleep, and abruptly stopped at around 11 months. He still wanted to nurse at bedtime, but couldn't fall asleep that way anymore. Instead, he wanted his dad to rock him. (That lasted for a few months, then we went into a few months of someone lying down next to his crib, then that was over, and he started going to bed on his own, which shocked and delighted me at the time. You know how with that first kid it all seems so endless?)

My second kid never could nurse down to sleep, so he's no use as a data point for this question.

I've heard of several other kids who stopped nursing down of their own accord somewhere in the 10-12-month neighborhood, but I'm wondering if this is common.

So, if you nursed to sleep at bedtime until your child gave it up on his or her own, how old was your kid?

If you pushed the weaning for that feed yourself, I'm glad you did what worked for you, but your results aren't useful for the data we're trying to get on this post today.

Also, you can give info about naps if you want, but I don't think naps and nighttime sleep always have much in common timewise.