Sigh.
Yes they carry these things.... the point is that it's much easier to hold them / wear them when you pee standing up at a urinal 🙄
It's not just differences in clothes, it's also the sitting, bending and having to lower clothes off your waist / get your undercarriage out of your clothes. It all adds up.
Sure, perhaps none of this applies to you, just as faffing in front of a mirror does not apply to many of the women here. That doesn't mean it's not true for many other women.
I have a feeling you and I have interacted before.