People here talk about not knowing anyone that buys Nikon and how Nikon is always making a loss and how Nikon cameras don't rate as well as Canon on Amazon, etc ...
Co-worker is planning their holiday and wanted the best camera to take on holiday and went with a D810 plus lenses.
My input into the buying decision? Didn't know that she was shopping until she mentioned what she'd bought.
Do they shoot sports? No
Do they shoot birds? No
What photographs will he take? Typical tourist pics.
When asked why she wanted the Nikon D810 her answer was simple: "I just want the best IQ."
No, I'm not making it up.
(Reposted because someone decided to be pedantic, so I've corrected for their pedantry.)
I would go with Fuji X series + native lenses.
A good point and shoot (or a Nikon D3xxx) would have been more than enough. And if you save 4,500$, you can find other ways of spending them during the holiday.