Search Results: what type of underwear girls wear

So my girlfriend just loves doing headstands and other exercises and such... and her workout uniform consists of loose shorts and a loose shirt. Basically a gender-neutral uniform guys would wear too. So as she gets in the headstand position, of course her clothes go down due to the laws of gravity. Her shorts are only right above the knee when standing, but in the handstand position they're at her upper thighs, almost revealing her underwear; and her shirt also goes down a bit, showing her belly button... but only her belly button, thankfully.

The first time she did this in front of me I was like, "It's great that you're fit, babe, but as you're doing that, your shorts and your shirt are going all the way up!" And she was like, "Am I supposed to care, babe? There are girls that already wear shorts this length without them even having to rise up! Plus, it's just skin! What's there to care about?"

My girlfriend obviously isn't bothered by her clothes going down and revealing more skin as she does headstands and other exercises...

But I personally am bothered by that type of stuff. Maybe it's because I'm more old fashioned or conservative, but I'm still bothered.

Regardless, I still like to see where most people lie... whether they don't mind like my girlfriend, or if they do indeed mind like I do.

So my whole life, I've always assumed girls/women had on small spandex shorts when they wore skirts/dresses.

However, me and my girlfriend went to the beach the other day... and after we were done having fun at the beach, we put on regular clothes over our swim wear. And she just whipped on a dress, above the knee length on top of her bikini in 5 seconds, and said, "I'm ready honey!" And I asked her, "Really? I mean you don't really have anything on under your dress. You have your bikini bottoms, but they just basically look like underwear. Are you really gonna go walk around in public like that?" And she laughed really hard, and said that you're not supposed to wear anything but underwear under a skirt/dress, and that she and all of her friends just wear underwear, and no girl she knows wears shorts or anything else underneath.

It was then that my fucking mind was blown... so every time I saw a girl in a skirt/dress, she most likely only had underwear underneath? It's especially weird in a skirt/dress that goes above the knees. Meaning if only she spread her legs out a bit more, everyone would see her underwear? Does the average women really not care about that type of stuff?

As a guy that's a pretty absurd thought, as the male equivalent of that would be whipping on a long shirt slightly above the knee, wearing only some boxer-briefs underneath, and just going out in public like that...

And as such, I'm here asking to see what the general thing REALLY is.

Is it just simply the way skirts/dresses are traditionally worn, but most women are still bothered and wear shorts? Do most women not care and just wear the underwear?

Maybe I'm just overthinking it. I'm trying to literally relate to girls who wear skirts/dresses with the long shirt thing, when I'm not even SUPPOSED to. Skirts/dresses are a girl thing. Just wearing underwear underneath for in specific girls is normal, and not something guys should relate to.

But maybe my thoughts are reasonable after all