“During the past month, other than your regular job, did you participate in any physical activities or exercises such as running, calisthenics, golf, gardening, or walking for exercise?”
[1] https://www.cdc.gov/physicalactivity/data/inactivity-prevale...
Most people doing weekend golf are getting golf carts. Others almost always have a caddy. I suppose walking the course while someone does the heavy listing is some degree of exercise, but they really need to clarify that in order for golf to be exercise you need to walk the course.
Also, most walkers in the golf world don't have a caddy. They're not available at most courses. Even quite a few private clubs with biiig membership fees don't have caddies. I just looked it up and a random link says 32% of private clubs have caddies. Of public courses, a few destination courses have them (Pebble Beach, Bandon, etc.).
10 minutes to the grocery store once a month does not count.