Shigeru Miyamoto has shared a very straightforward answer on why Mario was given the occupation of plumber back in the early days. He shared the reasoning in an interview with CNN.
"We wanted him to be someone who might live near you, and not a superhero."
While superheroes are bigger than ever nowadays, it seems taking the every-man approach with Mario back in the day was the right path to go down!
Miyamoto also was asked what words he would share with Mario if the mustachioed one were a real person. Miyamoto offered up these thoughts.
"Keep living in a way that's true to yourself is more enjoyable than being in competition with others. You'll be keeping plenty busy, so don't forget to work out and keep your mustache well groomed"