What if OP never gets married? Do you think it’s reasonable for someone to never be allowed to work by their family because they never get married? What other opportunities can be withheld before marriage? Driving a car? Owning property? Voting?
You may want to read about John Locke, particularly Essays on the Law of Nature (though I’ve never read the entirety myself). I’m not a philosopher. I just base my views off of his.
I never chastised OP. In fact the original post led me to believe she does not agree with the idea of not being allowed to work. (You assume it is cultural when it might not even be. My father wanted me to go to law school. That had nothing to do with culture.) Regardless, many times people do not realize they are being treated unfairly until it is pointed out by an outsider. Obv. I am not afraid to do this. My way of speaking works quite well for me, and OP is perfectly capable of ignoring me.