Nowadays, most people use password managers (hopefully). However, there are still some passwords that you need to memorize, like master password (for a password manager), phone lock, wifi password, etc.
Security wise, can passphrase reach the strength of a good password without getting so long that it defeats the purpose of even using it?
They can be good quality, yeah. But I’m more worried about having to basically present a digital-equivalent of a driver’s license if I want to sign up for Netflix, or watch porn, or order food. And if ID system routes every request to a central location first, then you get stuck with de-facto tracking on everything you ever do, no matter how good the company’s privacy record is. That’s what I meant by creepy.
Thank God for GDPR. That would be impossible in the EU. ID’s can only used in very specific cases that are detailed in the law.