It’s the older generation that think like this. For example, I’ll be covered up from head to toe in a loose abayo and hijab, and my mom will quickly tug the scarf over my chest. Mind you, I’m barely putting on the scarf in my own room, and she always has to quickly cover me up. My chest is not even that pronounced over such a loose dress.
It really annoys me, but I don’t think we can change older people’s thinking. They think that if you don’t cover up, that automatically makes you a dh*lo and a bad Muslim. Never mind talking about sex openly.