I actually love the double set of doors for the opportunity it creates to smile and say, “no, no, these ones are my turn” and hold the door for him. Sometimes it takes a little extra encouragement—“sometimes you have to let the world be nice to you too”—and a lot of persistent smiling, but I do not give up and let him oblige me to be assisted.
[My comment on “Sexism is hard to explain” by Kel Campbell on Medium]