Breastfeeding a 1 year old

Samantha
My son is currently 7.5 months old, I've been debating if I should sell or donate my breastmilk because we have an abundance and it would be a nice thing to be able to say i did it. I was telling my coworker about it, and she asked how long I planned on breastfeeding, and I told her maybe past a year, but I'm leaving it up to him because he is super attached to it now. She told me I was disgusting if I even thought about doing it past one. I just shrugged it off like whatever I'm still going to do it bitch but like really. What do you say to that.