Lofty, the same people who are responsible for opting in on behalf of children or people unable to make their own decisions would be the same people who would opt out on their behalf - IE parent/guardian/carer - whoever normally makes responsible decisions for them. People are acting as though if there were an opt out system then doctors would suddenly turn into ghouls, ripping the organs out of still living patients in spite of their wishes. All it means is that the people who are apathetic and are not that bothered one way or the other will donate by default because they have not deliberately chosen not to. As the wife of a donor recipient, I know first hand how much a transplant can change a life. The patient doesn't need to be dying for it to make a huge difference either. The gift of sight by donating your corneas can make a huge difference to someone's life. A kidney to a dialysis patient gives them the freedom of a normal life - they can work again, go on holiday, drink more than a litre of fluid a day, have a normal sex life, have children and so many other things. I don't think people actually realise how poor the quality of life can be for somone suffering from organ failure, and anything that can be done to improve this situation can only be for the better