Since I can’t write an infinite list, just one. iPhones have one feature to allow parents to approve purchases of their children in the App Store. Now, the kid downloads Steam with his parents’ permission (regardless of any full-screen warning). They introduce their payment data, and at this point, almost no one will be thinking whether this payment control works here or not. Then, the kid spends $99, and the angry parents come to Apple complaining because their promoted feature didn’t work.What issues?
Maybe some people will think this is a very creative story, but let it rest for 30 secs, because it’s one of the easiest things that can happen.