Same idea as most guys would not go on a long walk, wasting valuable time, but they will paly a round of golf and not feel embarrassed to walk in nature while doing something positive. Mark Twain said that golf was a good walk ruined.
It was my luck to be one of the few people to make money on a golf course. Never played, my job was being the caddy.

It was a good walk and money to show for it.

jtk