So now, when they see girls wearing jeans and skirts (so different from what they have seen their mothers and grandmothers wear), or girls drinking alcohol (something that only men drink in their families while women sit separately talking about pressure cookers and bharta recipes), their brains automatically infer that these girls aren’t good.
Men are expected to behave in a certain way in the society too, which too plays a part in isolating them from women. Men are expected to be strong and protective. Men are expected to become engineers and doctors. Men are stereotyped to be macho. Men are expected to earn a living. Men are expected never to break down.