This specific example he uses a trailer park, this would be a small tank that people used to do themselves on a Saturday. This isn't installing a sewage system for a school, its something that is pretty hard to screw up if you have basic competency for reading Ikea level instructions. But this kind of thing has gotten out of control, where you could hire the local handy man to help you out now you have to pay a company $10,000 to do it. Home construction costs of any kind of sky rocketed. I suggest you dig a bit and see what some of these things cost now days.

There should be standards, but the requirements for entry are burdensome in many areas. What could have started with a 24 year old, a truck, and a tool box, has turned into a $45,000 investment.