Why do GP practices always require you to be there 10-15 mins early but always have you sat around for ages when there?

Posted by sachdamasta@reddit | AskUK | View on Reddit | 64 comments

This one is for anyone who may work in a GP practice if they could enlighten me as sometimes it just seems daft, partner had to go get some bloods taken and was there in time for her appointment, despite there literally being no-one else in the waiting room they still made her wait like 20ish mins before seeing her.

Why are they like this?