I am going to play Devil's Advocate and take the other side of this. Let me first say, I have no fondness for Greg Norman. his products, designs or marital advice. I also wouldn't want to see this cart silliness at most private clubs sporting anything close to worthy architecture.
That said, as the father of two daughters, 12 & 14, and around so many of their peers, I fully understand the attraction of this approach. Sadly, kids these days have limited attention spans, excessive stimulus (delivered by smartphone), multiple choices and like all younger generations a relative aversion to anything their parents find fun.
Putting audio speakers and various other electronic devices aboard carts would unquestionably attract those kids who now see the golf course as large (albeit premature) cemeteries. So many of them think golf is boring and so many who even bother to try, or commit some measure of time to learning get easily distracted and dissuaded.
Just look at Bowling and see that where it is thriving , the atmosphere has become closer to an electronic rave party than Bud & Bills's Beer hall. A friend of mine owns a chain of bowling facilities and is virtually killing it five-out-of-seven nights a week, with hour long waits for lanes. As he put it..."once I learned how to turn the sport into a disco dance, everyone went from frowns to smiles." One look at the single biggest growing segment of golf-related business (Top Golf) confirms the millennial attraction to shiny things, comfortable couches and cup holders.
I don't think Tom or any other respectable golf course aficionado has much to worry about. The invasion of budding Al Czervik's isn't coming through their gates.
Just my two cents (and clearly not worth much more).
FWIW...I do believe one Randolph Morrissett would gladly have these vehicles following him if they had the right beverage and some really nasty chrome wheels and undercarriage lights. After all, such a ride isn't too far from the one he tools around in already!