Congratulations on your milkstone!
I think it just depends on the mom (and the baby). I personally don't plan on still nursing at 3 years old, but every mom and baby dynamic is different.
I have a feeling my son is so gung-ho and busy that he would wean himself by then anyway
Isaiah, born Nov 14th, 2010, @ 39 weeks, 2 days. 8 lbs 2 oz. All natural hospital delivery.
Simon, born Mar 23rd, 2013 @ 39 weeks, 3 days. 8 lbs 4 oz. Our first home birth!!