Normal people are not going to do any of those things. If you force them to, they’ll lose the phone or wipe it or sell it. They will lose the physical key immed

Normal people are not going to do any of those things. If you force them to, they’ll lose the phone or wipe it or sell it. They will lose the physical key immediately, or break it somehow, or sell it. This is not a technical problem, and you cannot solve it with a technical solution.