Yeah then what's the point? I can already order Uber and someone drives me. The main allure of self-driving is that I have my car, that drives me around, without involving anybody else.
Not if it isn't available to buy. For that matter I have a highly advanced general super intelligence. You can't have it. I'm just using it to solve my kid's math homework.
As long as I can rent it to solve the homework of my children which are in your class that's fine.
In fact if you feel comfortable it gets everything right and doesn't kill people in situations where humans don't please consider extending to a larger area of homework until you feel comfortable letting it carry out PHD level research assignments.