As a sibling commenter has noted, women tend not to pee in public, which means that public urination is a problem of some men choosing comfort over sanitation.

In any case, with specialized funnels, women can choose to stand while urinating. [0] Transporting such a funnel presents other issues, perhaps soluble with a plastic bag.

In addition to funnels, there are methods women may use to urinate while standing. [1]

[0] https://www.amazon.com/GoGirl-Female-Urination-Device-Lavend...

[1] https://www.wikihow.com/Urinate-Standing-Up-as-a-Female

EDIT: Add last paragraph and second link.