No, certainly not
This used to be the case, but it is now much more restricted. Promotional items are all low cost and expensive meals are much less common if they happen at all.
That's not quite what I meant. If people move well out of a practice's general area then they are expected to change to a GP nearerr their home. There is no regulation that says they must as far a I know, but it is not really practcal to haver patients miles from the surgery. What I really meant was that patients do not tend to chop and change from one practice to another unless there is some major disagreement.
Of course we now have "drop in" centres where people can see a health care professional. Trouble is the professional doesn't know the patient and vice versa. I appreciate it might be convenient for minor ailments but anything complex would create difficulties