For them there are robots.*
From Popular Mechanics:
Unwilling to waste one more sunny Saturday mowing, PopMech Senior Tech Editor Glenn Derene tests the new breed of grass-cutting robots.
* I couldn't resist the supercilious tone. Sorry.
Here's The Guardian:
Who wants to serve a billionaire?
The rich are getting richer – and that means jobs on superyachts for those who can meet their employer's every whim. But first trainees must learn how to fold a towel ...
"...At the more arcane end of the spectrum are the people who staff superyachts, who need to be equipped with discretion, servility and good ironing skills..."