modesty

Hello Rabbi.
Recently I started wondering why a woman needs to cover herself so much? What’s the problem with a woman wearing pants that reveal a little of her body? I’m talking about exposing the body not for sexual purposes, not to seduce those around her, but simply because it’s more comfortable that way, that’s what everyone does. It’s the norm.
So my question is this: Do you think there is a problem with exposing the body to a certain level in itself (that is, is there a problem with the exposure itself)? And if so, what is the problem with that?
And another question: It is clear to us (and correct me if you think otherwise) that there is a certain gap between the norm in religious society and the norm in the Western world in terms of modesty. Also, we can see that over the years the Western world has been following a certain trend regarding modesty (more freedom, fewer restrictions, etc.) and the religious world has followed suit. Thus, a (relatively) permanent gap has been created between the two worlds, as a result of both moving in the same direction and no one staying put. For example, if it was once very rare to see a religious woman wearing pants, today it is quite common. Therefore, if all this modesty is a matter of norm, and the norm changes over time (and place) – how can we determine what is modest and what is not? After all, everyone and every time has their own approach.
It came out a little messy because I’m quite confused, but I’d be happy if you would still answer the two questions. The first one you would answer without any connection to halakha or religion, but only on the intellectual level, and the second you would answer with a connection to the religious world.
Thank you very much in advance!