I would almost think that three guy playing cartpath only golf would hold up a decent walker. You guys should be considered for sainthood for not ditching Fred when you got a few holes behind. Were you guys holding up groups? Don't they have marshals to keep play moving on #2 ?
I agree with @Yukari that this episode is not really about carts and walkers. A moderately competent walker should be able to maintain pace with people in carts when it is "cart path only." It is a shame that "Fred" ruined the round. @Sandy Lie, you have a lot more patience than I.