Little examples i've come across is aged 20, i was asked to train a new member of staff on how to do my job. He was a 50 something gentleman who'd been made redundant from a management position in a previous role. The whole time he made comments about how demeaning it was, and surely he ought to be trained by one of the male team leaders not 'palmed off on some silly little girl' along with a few 'i used to be a manager' sort of comments.
The expectation that i should be the one making the drinks. I refused, and pointed out i didn't drink tea or coffee, wasn't part of the 'drinks round' and i wasn't about to waste time i could be working making it for everyone else.
Being asked if my (now ex)husband was 'babysitting' where he was just asked if he'd left me at home with the kids.
I think the only time i have ever been put first on a mass scale is in medical appointments and assessments with my disabled son, and parents evenings with both of them, where i was always deferred to and my husband more or less ignored, to the point he would get annoyed and threaten not to bother coming.
As for what i said upthread, for the menfolk who have clearly found this thread...
If you're walking towards a disabled person on crutches (or in a wheelchair which i sometimes am) and you DON'T step aside, you're inviting injury, or forcing them to stop, they cannot just side step around you.
I've seen women yank their partners out of the way to give me space before. Yes, it does amuse me.