I hate caps lock

WHY do we have the caps-lock key. I have never ever wanted to use a caps-lock key. However I have accidentally turned it on an uncountable number of time. It messes up putting in passwords and is super annoying. In addition I use VI and when the caps-lock goes one all the command are messed up. Usually I type in fast so then my code is messed up. I have never wanted to ever use the caps-lock key ever and never will ever want to ever use it ever. I hate the caps-lock key. Down with caps-lock!