Why should I use a password generator?
Because people are really bad at inventing real random passwords. People often use words or numbers that mean something to them: the name of the pet, the mother’s maiden name, the birthdays of their children, the lyrics, etc. The problem is that you get passwords that are easy to guess.
And remember: it’s not people who pick up passwords — they are computers. A typical desktop computer can check more than one hundred million passwords per second - and that number rises to a billion passwords per second if the computer uses GPU-based hacking tools. The length and complexity of the password is very important.
So do not risk. Use a random password generator to create long, truly random passwords that even the most powerful computers cannot crack.