Why don't we dispense with the pretense that passwords should be human readable strings of characters at all, and just make them a sequence of randomly generated bits.
Passwords often need to be human readable because, in practice, humans often need to memorize them and then enter them from memory, or write them down on a piece of paper first, which can be error prone with a complex password.
Using a password manager isn't always an option either - there is a vast amount of infrastructure, much of it corporate and nearly immutable - that simply presents the user with a password prompt and expects them to get it right.
It's only recently that some password prompts even let you view the password you've typed. With a terminal, you get no visual feedback at all.
Password managers suck as soon as you need to share a password - like the password for a SaaS admin panel used by several people at a business. Not all services support multiple users (or multiple admin) users.
