According to Uber and Buzzfeed, Uber drivers earn about $25/hr on average. Assuming my Model 3 is able to earn (conservatively) $10/hr for 8 hrs/day as an autonomous taxi, thats about $2,400/month. After lease and charging costs, call it $1,500/month. What's to stop private citizens running their own 10 car fleet of Model 3's and earning $180,000/yr in profit??