You're not entirely wrong. Aviation is a hobby that is difficult to engage in if you don't have money. But flying those same planes is exactly where your commer

You're not entirely wrong. Aviation is a hobby that is difficult to engage in if you don't have money. But flying those same planes is exactly where your commercial pilots are trained. It takes 1500 flight hours (certainly this number is wrong but too lazy to look up the current ATP minimum) to be eligible for the license to fly passengers on commercial airlines. A substation portion of those hours are as paid instructors.