Whilst I admire our UK standards for electricity and other services, I do consider that a person with enough survival sense and average intelligence should be safe enough in a bathroom with sockets. The regs state that there should be no mains, sockets or lights/switches in reach of a person using a fixed bath or shower, impossible in a boat.
I have travelled extensively and can safely ( ! ) say that standards anywhere else in the world are lower than the UK.
Yet I don't think that this is because the UK population have lost all common sense or are stupid, just that we have a good set of standards and guidelines.
In some countries the wiring appears to be to no standard at all, the people survive, even stupid tourists manage to avoid electrocution.
I have seen installations in showers that make me cringe, RCD switches if fitted are invariably in the shower. Overhead shower lights are mains unearthed fittings. Bare wires abound, disconnected earth wires are common.
Do we worry too much?