Gary Fox
N/A
Yes why not.And what about any training , maybe a RYA Personal Watercraft Proficiency Course min for all users, no it will not cover everything but its a good start and if you can afford a jet ski then you can afford to do the course.
Motorbikes are far more dangerous than horses, so the licences and training are far more demanding, in fact I believe there is no DVLA horse driver's licence.
Why can't a similar heirarchy be applied to wetskis? They are exponentially more lethal than sailing yachts, which travel at a walking pace, and don't and shouldn't need a licence to operate.
Gin palaces could go in the middle, with their owners' Audis and Jaguars.