I'd disagree,
firstly the minute you take control of something humans naturally 'switch off' this could lead to people paying even less attention to whats happening around them than they do now.
The young lad syndrome is rarely about acceleration as insurance costs alone keep them in low power cars, their accidents are usually through trying to carry too much speed for the car and conditions. e.g. if it takes you 15 seconds to get to 60 you don't want to slow down any more than necessary
You're last but one comment puzzles me TBH, once you pass your test what eductaion or training is there for you? Very little. If this Gov really had road safety at its heart then regular retests would be a simple way of raising driving standards. Unfortunately there is more chance of me winning Hyndburn hunks than that ever happening!
Life is far too random to say that you shoul d never find yourself in a position that you need to accelerate out of harms way. I've been in a few situations through no fault of mine where I couldn't avoid it ( example, riding in the outside lane of a busy motorway, car joins from slip road and just careers straight across and was coming into my space with teh driver oblivious to me being there. I had a car about 10 foot behind me so if I braked he would have taken me off, a car in front of me but as I'd left a decent space I could accelerate actually into the gap between him and teh car to his left as if I was filtering, as we were all sat at 70 what could I have done if I hadn't been able to get out of teh way? )