Two comments on what causes slow play, two observations, and two questions:
1) Not being prepared when it's your turn to strike the ball - this means knowing the right club, having taken your practice swings (during a fellow competitor's practice swings, ideally), etc.
2) Not thinking ahead - about where to put your bag / cart, drop off a partner or fellow competitor from a cart, etc.
Two observations:
i) Age doesn't seem to be a huge predicter of pace in my experience
ii) Particularly for resort / destination courses (and any cart path only course or hole) help the players by showing distances to hazards, etc.
Two questions:
a) is there a site or article that I can point people to teach them how to play more quickly? Unfortunately two of the people I can think of who play slowly are the sort who will push back *hard* if they are told they are the course of slow play, and will likely ignore what is said
b) no one in my regular golf trip group shoots in the 70's. How do I convince them to play from the whites, instead of from the blues or tips?