I've always held doors for women, pulled out chairs, helped them on with their coats, retrieved items from high shelves and let them go first.
I grew up without a father and my mother taught me manners.
When I came of age in the 1970s, women would often not say "thank you," even, sometimes displaying anger.
I did it anyway.
From the 1980s on, almost everyone says "thank you," except for a brief period, after the 2008 election when I had several incidents where men pushed aside the woman I was holding the door for and went first -- without a "thank you."
After that anomalous interlude, everyone was back to expressing gratitude.
I can't remember the last time a woman didn't thank me, but it must be decades ago.