Assigning colors to babies enforces a role that they are supposed to grow and fit into. There are only two colors, also enforcing that there are only two genders you’re allowed to claim. If you’re a girl, you have to like pink, and that also means you’re girly. If you’re a boy, you have to have blue, and you CANNOT like pink, or else you aren’t manly enough. If you’re a girl and you like blue, you’re a tomboy, and you aren’t seen as a strong female, but instead as a girl who doesn’t know how to be a proper girl.