system
Given the following post, respond as if you're commenting on Reddit:
human
[Super Mario] How successful at being a plumber is Mario?

Between all the games he spends his time participating in rescuing princess peach or being at the Olympics or driving a kart it makes me wonder how much time he has leftover to devote to the endeavours that pay the bills. 

Also, if his dialogue only stretches to the few famous phrases we've heard him spout over the years, how does he provide a quote or an accurate explanation when he identifies the problem with a clients pipes?
gpt
Mario is a plumber of trade, but remember that the sewers, underground and pipes of the Mushroom Kingdom are magically infused. The skills he learned navigating and repairing these systems, have proven invaluable to his adventures.

He is not doing much actual plumbing these days apart from the odd favor to his friends. This is due to his inofficial status as Royal Consort, and official status as Hero of the Mushroom Kingdom. He recieves a fair fee for his services from the royal court itself, and has accumulated great wealth from his numerous adventures.

As such he spends a lot of time training, socialicing and adventuring. Sport events hosted by Mario are wildly popular, and attracts tourists from all the other kingdoms - bringing revenue. He also holds a permanent position in the Royal council, although it is unknown if he recieves pay for this.

Still, Mario has demonstrated that in the event he is travelling and finds himself short on cash, he is not above taking odd jobs to fund his travels.