Here is a kid who makes arcade games from the cardboard boxes left over in his dad's auto spares shop. He receives little to no customers in spite of devoting days worth of his sweat and time, but he doesn't care. All he cares about is making his arcade the best it can be. He continues to make games even though nobody is playing the ones he has already built.
A detail in this video that can easily be missed is the method nine year old Caine Monroy uses to verify his fun passes. Personally I don't think I could have devised such a method even when I was 12. This lad is both industrious and brilliant.
Everything is manual: he physically goes behind each arcade game to push tickets/coupons to any patron that's playing, for instance. In this video you will also see how he modified one of his games after he received feedback that it was too easy. Caine displays the raw old fashioned resilience and passion that is the driving force behind any successful endeavour. Adults for the most part lose this single point focus and start getting anxious at the first sign of difficulty.
Keep building, keep shipping, and soon enough the people will come. Of course, Caine doesn't give that sentiment too much thought - he's too busy mastering his art.