Maybe a good idea. It’s harder to recognize, for someone which is looking to your keyboard, while you typing in your password.
I’ve tried it under Debian and it was no problem. For example we want a user with the password End Of Text or in other words CTRL + C.
I did this with CTRL + V followed by CTRL + C. CTRL + V is for escaping.
solved Can i use control, shift or other special key combinations as password when login in linux? [closed]