>>This all assumes the exchange will even do business with them following their extensive KYC checks....I've never had a bank require...a passport..

One can deduce from the context that a passport is required to use bitcoin. It's FUD and incorrect.

What do banks require in order to open an account?

From the 1st result on google:

your name, your date of birth, your current address and phone number, Social Security number (in most cases) and your email address.

You don't need any of those to use bitcoin. You don't need any of those to buy or sell bitcoin.