OP - you really have no idea, do you? For some people, that £2 is the difference between having food on the table.
I've been in the situation several times in my life where I've had to have numerous GP appointments, either because they can't quite work out what's wrong or because I have been quite ill and have had to constantly see someone.
It sounds as though you have no idea of chronic conditions. I have a cousin whose child has chronic lung disease. He's now 15 months old and has had 6 hospital visits since being born. (apart from his heart surgery) He has a brother who is at school who appears to catch everything going. That means when one gets ill; so does the other. Because of his illness, a cold isn't a cold and can make him seriously ill. So, you're going to penalise people like their parents?
Even if you don't charge for chronic conditions, you're still penalising people. I, as a result of the medication I'm on, get nose infections and sinus problems quite often. Whilst not chronic, I do need to see someone.