Most of my passwords are based around strings of characters that are comfortable to type, then committing them to muscle memory. There's a few downsides to this:

• If I need to log in to something on mobile and don't have a proper keyboard with me, it's tough to remember which symbols I've used

• I share some of my logins with friends and family for certain things, if they call and need to re-enter a password, it's usually impossible to recite it to them over the phone (most of my shared logins have reverted back to proper words and numbers to make it easier for the others)

• If I lose an arm, I'll probably have to reset all of my passwords.

But yeah, words alone provide plenty of possibilities. There's a reason cryptocurrency wallets use them for seed phrases.