Are we talking about cars like the EN-V that are fully automated? Eventually you will have to get used to riding around in such cars because they will be around soon enough. Google has a few out on the roads already with very few or no accidents.
If you are talking about things like the Cadillac XTS with technologies to warn of approaching objects, lane departure and those sorts of things, I have driven one and it works very well. Some cars have automatic braking if you are approaching an object too fast also and they tend to work pretty well.
Except for Volvo, the autobraking is still in research at Volvo...
Safety has come a long way in cars too. I've been in the room for a 2014 Cadillac crash test, and it was awesome too see.
Computer systems have come a long way in cars and they will continue to improve.
Driving a CTS-V around, traction control comes in handy a lot. Otherwise your rear tires would only last a few hundred miles. Such a powerful car.