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?
There are a lot more words than there are characters, even including special characters, so if it is actually randomly generated from a large dictionary, a passphrase is much harder to guess