I don't have much want or need of an EV, but I was able to bring 240V power into my detached garage and install a 100A subpanel myself. It was all legal, I got a permit to do it from L&I and had it inspected and signed off on. Most states and local jurisdictions allow homeowners to do electrical work on their residences, assuming they go through the same permitting and inspection process as the pros.

I encourage anybody with the time and diligence to do their own residential electrical work. It can save you a lot of money, and add a lot of value to your home.