Herding cats. When people talk about getting GPs to do anything collectively, the phrase "like trying to heard cats" follows accompanied by an eye-roll and a chuckle.
But the saying is used so commonly for a reason. Historically, it has always been difficult to marshal GPs into a particular way of behaving.
Now a change in behaviour is required by law. But what will happen if certain GPs don't take the lead? Will they be charged with breaking the law and thrown in jail? Not likely.