Just a question of proximity
I am not going to make an "uncomfortable rush to the door before a woman to open it"
Yet if her and I meet at the same time, social convention is to open the door for the smaller sex, as WAS the custom because in times past, doors were much heavier and it would be quite awkward and time-consuming for the female to open it for the man.
Such became the custom
Nowawadays it still lingers as a custom, though not as useful. Since I care nary of what people think of me, I just open the door for a woman as a custom, if they are closer, I expect them to fend for the door themselves. If they struggle, as a human being who "likes to help people", i will assist them.
I attach no feminism, nor manimal reasons for this or sexual desire, hehe, remember Manimal reruns from the 'eighties"?
Anyways, it is not necessary to open the door for a female, they have no right to expect it, nor do you need to enjoy smelling a flower, or gazing at the sunset or enjoying a nice song. You need NOT have to do such. But opening a door for a lady can be just as enjoyable as anything listed above, and opening it for an elderly lady/mand or disabled person is just plain good karma.
If you are in reach, open it, if you arent, dont sweat it unless you see them struggling, otherwise concentrate on better things
Brothabill