"I think the difference here is that you imagine people standing still for 8 hours straight. Obviously that would be a bad idea. No one seems to promote that."
Why is that obviously bad? I stand for 9-10 hours straight. It took probably two weeks to get up to that point, but I rarely even sit down when taking a lunch break. I don't use a gel pad and I stand barefoot at home, or in some form of barefoot (vivo's to look nice) when I worked in a office. I almost constantly shift my weight. And every 10-20 minutes I do calf raises, stand on one foot, do free squats, something to move some blood. I'm still standing in all of those exercises though and most are just second nature. I stand still while typing, but move quite a bit when I'm reading.
Why is that obviously bad? I stand for 9-10 hours straight. It took probably two weeks to get up to that point, but I rarely even sit down when taking a lunch break. I don't use a gel pad and I stand barefoot at home, or in some form of barefoot (vivo's to look nice) when I worked in a office. I almost constantly shift my weight. And every 10-20 minutes I do calf raises, stand on one foot, do free squats, something to move some blood. I'm still standing in all of those exercises though and most are just second nature. I stand still while typing, but move quite a bit when I'm reading.