When with this there are no rules forcing them to do anything since they can just ship outside the store.
This doesn't address my issue (also I don't want another one I want to keep everything in a single place in settings on my phone). Considering I have never used PayPal for any of my subscriptions on the web I don't see this catching on for mobile either.
If a company wants to put me through hoops to make unsubscribing hard, there is zero chance they will opt to use something that makes it easy if they have the choice.