How do you prevent people from spoofing or using VPNs to get a lower price? Or do you not, and let it be just another cost of doing business?
I was aware of this potential issue when I implemented PPP on my course. It turns out almost nobody uses this trick, although a few told my about it. I guess when you are transparent with your users, they are actually happy to pay the fair price? Or maybe I’m too naive ;)
Some companies even make a fuss when you move between Western countries with similar economies for some reason. Lots of businesses are stuck in a "you were born in a country, live your entire life in a country, and will die in that country", which to be fair is true for most people, but far from all and there is often no resort.
It can get really complicated to manage data transfer between legal jurisdictions, remit tax correctly, and follow all local laws. Beyond that, the brand may be holding company that wholly owns distinct companies by country or region.
PS: Apple, probably Google too, have tiered pricing where you choose the price of your app or your content will cost and Apple takes care of the local pricing which is adjusted to your users purchasing power.
Whatever system you think of to price discriminate, people will break it.
Funny little Canada price discrimination story: Cell phone data is really expensive here since there is no competition, so much so that it is often cheaper to roam on an international line in Canada than to have a contract with a Canadian Telecom, hence the US number.