The boomers job is not all about just pumping gas. It includes learning the balance of the aircraft not only with fuel but cargo as well, translating into work in the huge air transport industry. That is employment in such companies as UPS, FedEx, and Kalitta Air. Not bad for a gas pumper. I personally have hundreds of hours on tankers to locations all over the world.
Two eyes, Two ears, and one mouth. Hint and a half to watch, listen, and then speak.