Since you can move a tiny house on wheels. You are better off finding a spot with low rent.
So with a low monthly cost. I wonder if a livelihood for some previously homeless people could be to cut hair. This in Tiny House furnished as a hair cutting space.
Also. A second idea I thought of was a tiny house for making pizza. The thing I wondered about was if it could use drones for delivering the food.
But this gave me another idea that retail stores could perhaps use drones to compete with online stores.