Breastfeeding

Okay all you non breastfeeding people, tell me what is so wrong with breastfeeding past a certain age?
I read that the American Academy of Pediatrics recommends breastfeeding for the first year of life. That means until your child turns 1 whole year old. Not one week, nor one month, a whole fiscal year!
I get stares at the mall, which yes, I have braved to whip my white boobie out and feed my child when he was hungry, oh, the humanity! I have had a few negative comments and honestly, I am so flabberghasted by them that by the time I gather my thoughts and think of something to say back, that person has already walked off.

What gets me the most is that all these comments come from women, mothers themselves. Aren't we all suppose to be supporting each other here? Is my breastfeeding my healthy/content son, making you feel guilty that you didn't do this with your own child, so you fire back at me out of spite?

I had never planned on breastfeeding past 6 months but life happens. My son has become insanely addicted to the boob and nursing and I don't have the heart to take away the sole thing that gives him comfort. Eventually I will have to as he cannot nurse forever but shouldn't it be on me and my sons terms and timeline, not because people find it to be unsavory?