There’s a number of problems with charging for appointments.
the most obvious is that many of the people who use a lot of appointments are not in a position to pay. Doctors need to monitor people who are having chemo and people who have brain tumors etc etc. a lot of the people who are seriously ill don’t have an income either because they are retired or because they are out of work either temporarily or permanently due to their illness.
macmillan run regular campaigns encouraging people with cancer to speak to them to get advice on how to claim benefits etc because many people with cancer do lose their job because they are so ill and can’t work.
a friend of mine is having chemo at our GPs(we are pretty rural) and she has chemo every Friday and bloods etc in between. 15 quid each time adds up pretty quickly.
and then there’s the issue that (a bit like with student fees) if people are paying they expect a minimum level of service. These days healthcare wise you pay for dentist, physio and lots of other stuff that once would have been free.
but if you are paying it creates a whole new set of expectations. Firstly that they will see you (I’ve paid for this appointment and I want to see the GP) and also that you can cancel/have it at a convenient time etc.
many workplaces without private medical are now buying into new private gp services. I worked in a school until three years ago and they had a deal that for twenty quid a month you could access a private GP service by video call. Only 240 a year but it meant you could book an virtual appointment pretty much anytime (they were open six days a week 7am-7pm) and they’d happily prescribe for uti’s, chest infections etc.
you can’t get in to see a GP these days for something like that, and it doesn’t take many 15 quids before people start thinking that 240 a year is very good value.