At what point will you draw the line between "the user wants to do this because of his/her free will" and "the user wants to do this because someone else told them to"? Where will you stop?

All of this is just a bandaid, so why not stop at the state we are at _right now_, without some kind of 24h-long process to enable sideloading and let people be people? Yes, people make mistakes. But that is not your responsibility, especially if it comes at the cost of freedom. The most secure android device would probably be a brick, but you won't sell these, right?

Please instead take these resources and invest them into the app verification process in the play store. Way too many scams are right under your nose, no need to search in places where people are happy with the status quo.