High tariffs and immigration issues are taking the fun out of yacht ownership for all but the super-rich.

Topline Two of the world’s most famous luxury yachts owned by a pair of the richest people in the world collided in a fender-bender accident while anchored off the coast of Naples, Italy this week.

Thanks to the recent clamp-down on unauthorized workers and a clamp up on tariffs, owning a yacht is not as much fun as it used to be. In the last two weeks, with crushing tariffs leveled against ...