They are called CART PATHS for a reason and they are a path for carts! It is unfortunate that people do not recognize the safety hazards of using the cart paths when they are not playing golf. An errant golf ball would be very painful, if not critical.
The approved Summerfield Golf Course Rules specify that “the golf course, including cart paths, is to be used only for playing golf. Any other use, day or night such as riding, bicycles, jogging or walking, is prohibited”.
If Summerfield policy to use the cart paths if not playing golf. Perhaps explaining the safety concerns will help them understand. If you are uncomfortable approaching them, please make a note of the date/time/location and pass it on to the Golf Shop, the Marshals or the SCA office.