My DD is 16 months now, and I still bf her at nap times and bedtime. It is a huge source of comfort to her, it's part of her routine, and of course still hugely nutritionally beneficial to her.
We will stop when the time is right for her. I will know when that time has arrived, as I am her Mum, and I will trust my instincts.
Why are people so judgemental about breastfeeding? Why do you care so much about how long others want to bf their babies for ............what makes it your business, anyway?
So many narrowminded people think it's just about 'food' for a baby.........SO WRONG. It provides a child with warmth, love, security, bonding, reassurance, comfort, cuddles, and so much more than non-breastfeeders could ever understand. There have been no problems with my DD over the last 16 months that a bf could not solve, eg...when she was poorly, fallen over, couldn't sleep, etc..... it's magic imo!
I personally don't 'draw the line' when it comes to other peoples breastfeeding choices, and frankly, if you do, then you should get a life.