This is incorrect. en_GB doesn't mean you're in or from Great Britain. It means you want the device to show English as it is used in Great Britain, with extraneous "u"s and rearranged month and day. A user in the US can request that locale instead of en_US if that is the language they prefer. Locale is for localization of the interface, not for telling where you are from.
Now maybe iOS sets the locale based on where the user is from instead of based on how the user would like their interface localized. If it does, it is doing it wrong. Sending a user's data to Tencent based on a setting instead of based on their location is absolutely wrong.
> This is incorrect. en_GB doesn't mean you're in or from Great Britain.
You misinterpreted. "Region" is a setting in iOS. But iOS "Region" has nothing to do with the "region" part of a locale. Setting your iOS "Region" to "Great Britain" and setting your "Locale" to "English (Great Britain)" are separate things. "Region" is just what iOS happens to call a completely distinct thing. If you like, to lessen your confusion, pretend it is called something different.
> Sending a user's data to Tencent based on a setting instead of based on their location is absolutely wrong.
You wouldn't want your phone to start sending data to Tencent as soon as you cross the border into China, right? And, vice-versa, you would expect a person from China, who thinks Tencent is a great brand, to not want to stop sending their data to Tencent just because they cross the border out of China, right?
> You wouldn't want your phone to start sending data to Tencent as soon as you cross the border into China, right?
You most likely would. Google's service will be unreachable from within China. If it didn't switch providers, you would have no Safe Browsing protection. The key thing is to obtain consent from the user the first time this happens.
They should send to Tencent based on network location. If you're inside the Great Firewall, Google's safe browsing service will be unreachable. If you're outside the Great Firewall, you really don't want to use services through it if possible. https://arstechnica.com/information-technology/2015/04/ddos-...
See the Australian English example in https://en.m.wikipedia.org/wiki/Locale_%28computer_software%...
Now maybe iOS sets the locale based on where the user is from instead of based on how the user would like their interface localized. If it does, it is doing it wrong. Sending a user's data to Tencent based on a setting instead of based on their location is absolutely wrong.