Earlier quoted context omitted.
Bank apps: Use an ATM, or a second phone. Enterprise apps: Use a second phone, preferably paid for by work. Government apps: Use a second phone, or refuse to use it (since there's likely elderly whom are not on board yet). Copyrighted media: Piracy.
"just use a second phone" cannot be the answer because 99% of people will just scoff at that. Instead of buying a second phone, why not just buy one that works? And that's to say nothing of the environmental impact.
Not That i want to kick the can down the road, but the ultimate solution (barring actually fighting for our privileges over the systems we buy) is to have that second phone, and control it either via vnc, or via a kvm which presents vnc. I know, its really absurd, complexity wise, what with tunneling and figuring out where to house said setup. However, the latter is ultimately transparent to the phone, outside of allowing a second monitor/hid to be connected to it. You could, given a VNC client then go ahead and control it via laptop or another phone.