This is nothing more than a myth. Sure, a computer science (CS) student can use their skills for computer troubleshooting (i.e. solving computer-related problems), but that’s only a tiny fraction of all the really cool stuff that you learn while studying CS.
What do you imagine when you first hear the word ‘programmer’? For many people, it’s the image of a lone, hoodie-wearing guy with huge spectacles, tapping relentlessly at the keyboard late into the night, doing the daunting (and might I add boring) work of solving other people’s computer troubles.