I agree that things can get complicated when taking into consideration multiple countries. But I think this is the cost of doing business and caring about users

I agree that things can get complicated when taking into consideration multiple countries. But I think this is the cost of doing business and caring about users. If you do business in multiple countries then that is the cost to be paid. I also think that the default should be that users should be able to delete their accounts and companies should provide evidence why they have that button disabled or removed. So in case of review the rule maybe could be: if the user is creating an account in your app, then. the user should have the option to delete their account from the app, unless evidence is provided why the account cannot be deleted because of legal reasons.