National Energy standards are no energy being used to heat past 68* And no energy cooling below 76*.
I maintain comercial office buildings.
In a owner occupied building the temps may vary between 68 and 76 degrees it is all up to the owners.
In most multi tenant office buildings the building standard is 72*. If I get a hot call and it is 72* or below. After I take temp readings and check to be sure I am not missing anything they get an apology and an explanation of building standard. If I get a cold call and it is above 72* the same thing happens.
As far as some stores being hot in the winter, it is because they are not running the AC. The old Emporium Valley Fair store does not have any heating. The boilers needed retubing around 1985 and were just shut off because 90% of the store did not need heating in the winter. The lighting in the store provides more heat than is needed.
Temperature and confort is a funny thing. In the summer time I will get a hot call at 71* and the same person will call with a cold call at 73* in the winter. It also depends on how busy you are. Someone sitting at a desk all day is going to be cold at 72*. Someone who is moving around is up and down all day will be hot.
Personally I keep our home 65* for heating and 75* for cooling. I now do the Mr. Rodger’s thing when I get home. When I get home I put my jacket in the closet and put on a sweatshirt, and after dinner I sometimes sit watching TV with my Blankie.