Tesla wanted to launch today, but in the end they will do the safe and right thing and like all others, test with human safety drivers on board. Here's why.

Tesla is expected to begin offering robotaxi service Sunday in Austin, an initial step that Elon Musk's backers believe could lead to the company's next growth wave.

The email outlined several parameters, including that users were limited to a geofenced area that excludes airports, could run into unavailability due to bad weather and can only hail a robotaxi between 6 am and midnight. This restrictive launch will reportedly only offer 10 cars and comes after a delay from an initial launch date on June 12.