It can be very expensive to start a business in the US. Years ago, I repaired and sold used appliances out of my garage. I bought a trailer to put behind my car to haul the appliances because I could not afford a truck. Zoning did not permit me to do this. If I got a business license, I would have had to provide myself with more off street parking to replace the area in the garage, and I would not be permitted to have customers come to my garage. Major appliances don't sell at swap meets. I flew under the radar for several years. I never could do enough business to save the money and open a shop in a commercial area. I finally gave up. My hat's off to those who do succeed.