Reminder that men and women can both do Things, and since the Things they do overlap, then "masculinity" and "femininity" are NOT SEPERATE.
Actions do not have gender.
The masculinity/femininity venn diagram is very close to a circle. Enough confidence and genderfuckery can make it a circle actually. A guy could be doing something masculinely and I could be doing it femininely and our nonbinary friend could be doing it like "the concept of a rainforest ecosystem", but we're all doing the exact same thing.
Actions don't have gender, just like clothes don't have gender. Just like haircuts, hobbies, voices, body types, etc etc etc. the reason people think they do is, as usual, rooted in the white cisheteropatriarchy.
If someone does something that you thought they couldn't, change your mind instead of stopping their action.