I think the delivery of technology has become difficult for consumers to fully understand, especially with the move towards apps with an online component. Consequently perhaps some indifference or acceptance towards it has been formed. Not to suggest that they aren't clever enough, but just that they have other things to do, and it has become time consuming. When I bought an Android mobile fairly recently for doing development, I spent three hours preparing it. Partly that was in deleting unwanted apps but mostly it was the changing of privacy settings. The settings have become so fine-grained, to the exent that they are really time consuming and repetitive to adjust. When I was doing it, I made a list of the settings I'd needed to change. It was four pages of A4.
Is your application intended to block outbound connections to domains?