Watching Riviera this week and Pebble last week, I am/was struck by the intrusion of "visible cartpath lines" on each of the courses.
Neither of these courses is a bear to walk (eg Kapalua) or in an hot/humid climate (insert desert course name here), so a walking-only policy (with caddies if need be) wouldn't be hazardous to anyone's health.
The benefits of course of a landscape free of paths are widened playing corridors, better aesthetics and better turf conditions.
The cost of such a policy would have to be borne by the members/guests at Riviera and the resort guests at Pebble.
I picked these two courses because they would seem to fit the type of course that could (in this day and age) institute such a change...golf-focused private clubs or high-end resort (with Bandon the model for the latter). Other types of public courses (Bethpage notwithstanding) likely can't afford it or would not be able to do it because of demand from their customers.
Any other courses that would fit the above?