It’s my understanding that plenty of older people who are getting to the point where it’s difficult to stay totally independent do this as an alternative to having to go into residential care. Makes sense too, it’s probably one hell of a lot nicer if you can make do with the medical care onboard.

High speed internet would the problem.

Have we finally found the perfect use case for SpaceX's Starlink here? Assuming you get a suite with a window that the pizza-box receiver can use...

The sea sickness is a severe downside for some