**TL;DR: The danger to life that autonomous-vehicles can bring outweighs the benefits of reduction in tiredness (or other debatable reductions such as traffic, time and emissions).** Autonomous-vehicles seem perfect until the concept of accidents is considered. Such vehicles are neither 100% safety guaranteed, nor are they free from the possibility of external dangers. A self-driving car requires too much trust in technology because although human error or risk can cause accidents, at least the driver still has control. A car could not merely hand over control in the event of an accident because human reaction time is not quick enough. Therefore, the only option is to program the machine to prepare for such an incident. The decision procedure algorithm of this programming provokes a huge ethical debate because there is no correct answer. There are numerous ways for how a car could be programmed: - Minimise harm? - Prioritise the driver? - Prioritise the passengers? - Prioritise the other party of the crash? - Or don’t base the decision off ethics at all?... Prevention of monetary damage? Having to program autonomous vehicles is almost like ‘playing-God’ as life-changing decisions are predestined. We do not have universal ethical principles that we always act upon, but instead live our lives as moral agents who must act according to the specific situation. We cannot teach emotionless machines to evaluate a circumstance in the way that a human driver would. The issues of trust and ethics of self-driving cars doesn’t stop there (at the case of accidents), but also extends to the idea that these vehicles could get ‘hacked’. Just like computers, phones and security systems, these cars are vulnerable to technological hacking. Therefore, although autonomous-vehicles may seem like the future, the ethical considerations of safety must be strongly considered before our lives can be submitted to the control of a mere machine.

Not to mention, it'd be highly impractical. **Me:** "Dude, car, I *have* to go to work today!" **Car:** "Nah, I don't feel like it." x'D