When I was probably 10 or so, one of the largest computer magazines in the country had a job for a 'junior writer'. My 10yo brain did not realize that junior meant 'just finished the relevant education' and though 'hey, I'm a junior'. So I just called them up and the guy on the other side of the line was clearly confused what to say to me not to disappoint me too much and mumbled something like "the person responsible for hiring is not around". In hindsight, it's pretty ballsy for a kid to just call, if I had to do it ten/fifteen years later I'd have been pretty nervous.
I'm a bit sad that we lose that innocent, carefree attitude later in life.