Prior to Mom CB moving in with us in the DR, she lived in a large senior community where golf carts are a way of life. But all the streets in the community have golf cart lanes, and the croiss streets just outside the communuty have intersections and lights that accomodate golf cart crossings, not to mention warning signs everywhere, grestly reduced speeds and tight traffic enforcement. So diriving a golf cart is safe. There are even "golf carts only" parking at grocery stores and WalMart. The community has approx. 20.000 seniors (I guess I am one now, by definition) and is quite upscale.
But as JD mentioned, every golf cart has lights, horns, turnsignals, seat belts, windshields and weather protection, and many are quite fancy, really no longer for just golf.
I doubt local "golf carts" are similarly equipped, and certainly most main streets on the North Coast were not designed for a speed-limited vehicle to operate.
IMO, another road hazard are 4-wheelers designed for off-road use with no safety equipment or registration. They are also much faster and generally driven by hoologans with *zero* regard for the safety of others on the road.
I'm surprised you don't see more Meyers Manx or equivalent in the DR. One would think they'd check many of the boxes a golf cart does: small, relatively inexpensive, manuverable, inexpensive to operate, easy to park, but also have safety equipment and can take to the streets with good speed.