I get paid on Thursdays, I hate making a purchase Thursday night online, and then not getting it until like the middle of the next week even if I choose 2 day express. Why don't these services run on the weekends? I'm aware that you can pay a HUGE fee for Saturday delivery and such, but why isn't weekend service just the standard? So many people ship things in this global economy, wouldn;t it just makes sense to have it functional 7 days a week. Plenty of other businesses run 7 days a week, hospitals, restraunts, television stations, gas stations, pharmacies, etc. Why is worldwide shipping any different, especially when it's growth has been increasing?
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Pointing out that people are overworked by a buisness bieng open 7 days a week, or people "liking" to work weekends is totally flawed. Millions of jobs are available to people only because of increased need for people to staff these types of schedules. I have always worked weekends for as long as I have been employed throughout my life it fits fine for me. Should we eliminate 3rd shift jobs and put all those people out of work so they can have the nice 9 to 5 shift you seem to think they need? How would they pay their rent?

Without expanded schedules like the 7 day work week, or 3 shifts in a day, etc. Millions would be hard pressed to find the revenue they need to survive. Besides if everyone worked 9 to 5 Mon. through Fri. who would actually be going to these buisnesses since everyone would be at work all at once?