I can't recall what service it was, but I remember singing up on some website that had a really cool feature for the passwords. It would tell you how much time would it take to crack you pass, just like https://howsecureismypassword.net/

For example:

123456 — 2 seconds
P4ssword — 15 hours
a$Dfy@d{u*f78-a — 4 trillion years

I can imagine any other system more fun and simple. It would also make a lot of people think twice about their passwords. I'd love to see that feature on a future WordPress update.