@Kendodd
"Also, what is the purpose of charging? Is it to stop people going to the doctor? Because if its not for that reason, well, we still have the same number of doctors, nurses, etc so the same number of appointments."
when a product or a service is either free or under priced then demand will outstrip supply as people will always value stuff less if it's free.
You can see examples of this in carrier bags where when they were free people took loads, but when there was a 10p charge demand fell 90%. Or napkins at McDonalds where people grab a handful when they only need one or two.
In the former communist countries, products such as cars or clothing were deliberately under priced. As a result demand was managed by queuing.
The NHS is exactly the same, because there is no cost to the service, demand is managed by queuing. Even if you increased the spend on the NHS, demand would increase.
The original idea of the NHS was to provide healthcare to those that don't have enough money to pay for it. This has now been replaced by a health service that only provides healthcare for those that have sufficient time to queue for it.
The solution is basically the same as carrier bags - a small fee to discourage frivolous demand but small enough to continue to allow access for the less well off.