What matters and what golf fans want to see is great golf shots being made. Let them all ride. The hard-core ironman golfers will insist on walking and grumble about tradition. Casey can ride and compete at the level at which he deserves to play. And the world of golf is better off.
Tradition can be a wonderful thing.
It is lovely and poignant that the Kentucky Derby winner gets a wreath of roses. It is amusing and fun that the winner of the Indy 500 chugs milk at the conclusion of the race. These traditions are not going to prevent anyone from competing. A rose allergy or lactose intolerance will not stop you from winning one of those prestigious races. In baseball, every pitcher who played wore his glove on his non-throwing hand.