What do you think of the phrase "senior gap year"? Should professionals be encouraged to take one, to prepare for retirement?

I saw this amazing opportunity, and having taken time off and done some (limited) travelling, all of which I found hugely beneficial, I wondered if more people should be taking the opportunity, subject to affordability. https://www.loveexploring.com/news/70753/retired-traveladdict-wanted-for-expensespaid-world-tour?utm_source=postoffice&utm_medium=email&utm_campaign=LEnews26012018 . It is an opportunity to put things in perspective, re-focus and even plan how you want to use your remaining working life. I know a lot of people wish they had done more in their career to make the world a better place. It just isn't easy when you feel you are on the treadmill.