I don’t know about op but I generally don’t stand during a flight despite the pain because I don’t want to be on everyone’s way. If you can’t get an aisle seat, getting up means making people in those seats get up. Aisle are too narrow to pass so if the flight attendants are out, you may need to edit their full routine. If you’re just standing there maybe you’re blocking someone beefing to use the bathroom.

Most importantly I don’t get up because trying to unfold myself from that torture device is a process. I can’t do it quickly. I can’t do it without leaning in something I can’t do it without sticking my butt out from being bent over under the bins. By the time I get into the aisle and get the kinks out do I can walk, the entire situation may have changed so now I’m blocking someone again