I personally dont think its a question about whether it should be given on the NHS, because without a doubt, it is invaluable and it should be, but only if used correctly, and there in lies the problem. If it was given to me 10 yeara ago, i would not have used it correctly and for me, it would have been wasted money.
The qiestion for me is how to ensure the NHS can maximise the value, in a system that i feel wastes a terrible amount of money. If that question is answered it would make arguing for the petition infinitely easier.