My older daughter self-weaned at 2 1/2. I thought #2-my son-would likely wean around then as well. No. He turned 4 in April-still nursing. I asked him the other day when he thought he would stop nursing. He paused the said "maybe 6 or 7." I am also nursing #3-daughter (18 months). I think my son will wean when she weans-pretty funny. I am just taking it all in and enjoying ever moment. I'd love sleep but am not ready to night wean.