Blue for boys and pink for girls. Why?!

Izzie • Mommy of a boy and three girls 👦👧🏻👶🏻👧🏼
I posted a picture of my daughter, who was a couple of months at the time, and she was wearing a blue jacket. I received comments and questions as to why she is wearing boy clothes and it kinda hurt me. Why is it that blue is only associated with boys and pink with girls? When you go to Target, Carters, any baby store, you see the section for the girls, all pink, and the section for boys, all blue. I just don't get it. I myself wear blue and it's not a big deal but God forbid my baby wears blue. So angry 😠