Rather than guessing, why don't we just list what our first job was, assuming we're some of the industry success stories (hey, everything's relative).
I was an off-air traffic reporter for a major morning show. I did a number of other things, including helping the jock to select his oldies (it was a rocker that allowed the jock to pull one or two oldies an hour at their disgression). He liked my selections so much, he allowed me to do it for him after a while and featured the requests in a 'from the vault' segment he created.