This is why I don't really do anything nice for anybody anymore (beyond established platonic friends), especially women.
Dudes know I don't want to fuck them and just want to be friends (or acquaintances or whatever), so with them I can just be a normal human. I can hold the door to the gas station for some random plumber behind me, I can pay for my homie's taco today and he'll probably get me next week, it'll come back around.
But if I open a door for a woman whether I'm interested or not, pay for her anything, or talk to her, I have to be worried about her now either A) she thinks I'm a creep for trying to form a basic human connection to fill a basic human need that most people beyond aro and aces need [whether or not I actually am committing the mortal sin of carnal optimism or not], or B) she thinks Ted Bundy's ghost is possessing my body and I must be hiding a tire iron in my sleeve, or C) She thinks I think she's physically incapable of opening the door because she assumes I think women are inferior. It feels like I'm walking on eggshells 24/7 trying not to do something that seems innocuous to me but is a grave insult or threat when divorced from the context of "I would have held the door for a guy too."
Exception: Old ladies. They're cool, usually. They don't mind general niceties or conversation and don't immediately suspect me of murders untold. I'm also kind of an old lady at heart which probably helps, "give me your gardening tips, Doris! Say, do you like The Golden Girls?"