Some interesting responses.
Trees grow high, steal water from the playing surface, drop leaves, put down expansive root systems that invade drainage, spread shade across greens and some varieties can be prickly.
Gorse grows low, uses little water, doesn't steal water from the playing surface, is evergreen, doesn't have large root systems, doesn't spread shade across greens and some varieties aren't prickly.
Curious, I would have thought gorse would have been the preferred option for golfers.
atb