What people? Clearly people want to shop on Sundays. If they didn't, they wouldn't. If enough people objected to Sunday shopping, it wouldn't be profitable for the stores, and they wouldn't stay open.
There are plenty of businesses that keep the traditional work week. If people really want to only work 9-5 M-F, jobs like that exist.
I don't want to be forced into a day of rest. I'll pick my own days of rest. It is no more restful for me to be forced to rest because everything is closed than it is for me to simply stay home. I have a sister who is fairly religious and she chooses not to shop on Sunday. Personally, I think it's odd, but it's also her choice. It doesn't seem to be a burden for her to stay home and yet not expect the rest of the population to conform to her religious beliefs.
Are you sure stores weren't open on Sundays when you were young simply because it was tradition? I'm almost 50. We absolutely had blue laws on the books when I was a kid which prevented stores from opening on Sundays. It was only after the blue laws were repealed that stores opened Sundays.
I used to work for Home Depot. They remain open on Easter.
Last year we made less than 5k staying open all day.
So although I see your point, I wanted to point out that businesses might be doing it even if the customers aren't there.
BTW, it's all nice and dandy if people can choose where they want to work. At the time, that wasn't my choice. So yeah, on the most important day of the year for my religion, I had to work 8 crappy hours at my job.
I'd love to do the 10x4 idea of working.