Playing devil's advocate a bit here, but:
Originally Posted by newtogolf Poor pace of play isn't due to 2 person carts, it's due to the 2 people in the carts not knowing how to use the cart properly.
Single person carts would eliminate the problem, but it's a more expensive solution for golf courses that are already feeling the impact of less golfers and revenue.
I'd rather see courses give a quick education on the proper use of carts, i.e. you don't ride with your playing partner to his ball, wait for him to take his shot and then drive over to your ball to take your shot. Instead ride to closest ball, drop him off with his clubs and then ride to your ball.
Maybe it's true that the impetus ultimately lies with the player, but isn't it possible that two-person carts just don't make it evident how to use them properly? Single-person carts would certainly eliminate much of that.
For example, the correct way to use a two-person cart is to drive up to one ball, drop that person off with some clubs, and drive to the other one, right? The problem is with the people who drive to one ball, wait for the green to clear, hit that ball, and then drive to the other, certainly, but in a single person cart there would be no reason to do it the incorrect way. The person in cart B isn't going to wait with the person in cart A, they're going to scooter over to their own ball. Shouldn't that speed up play?