Fit? That's a funny assumption to make. If it was something like a hiking trip then it would've been a fair assumption. Wealthy? Probably. Healthy? To a certain degree makes sense too. I just read somewhere that at least 1000 people on the ship were 70+. I'd take a young person's immune system over any 70+ year old any day.

Any way you look at it, the numbers on the ship are much more positive than a lot of what's reported in the media. More importantly, they are also more trustworthy in my opinion. The main reason is that there are fewer unknowns.