Enforcing what? It’s up to your email service to adopt the change. The way it currently works was probably okay for the early days of the internet when people had just started using emails, but now that so much private and sensitive financial information passes through your email account, it makes little sense that the same credential you use to login to your email account (email id) is also what you must use when some random website forces you to register in order to access it, just so they can send you massive volumes of unsolicited spam.

Certainly a simpler change with more potential to do good relative to the ease of enforcing a convoluted passkey-slash-usb-slash-save-this-file-somewhere-safe implementation

A lot of contradiction in your opinion ( at least as far as blaming the need for masculinity goes). As you pointed out yourself, toilets can be gross to sit on, and by now most people know what ‘clean’ toilets are really like under uv light. And that’s the only reason why, unless it’s my own toilet, I’m never sitting down on one to pee or poop.

Amazon/whatever login:

• email: [email protected]
• password: hunter2

Email login:

• username: chlamidiyasux
• password: hunter3

There. You’ve solved 90% of online fraud that begins with website(s) leaking your credentials and someone combining leaks to gain access to everything in your life via your email (including bank, socials, porn habits, whatever).