It’s not an all or nothing proposition. There is a gradient between going on a cruise ship (which is multiple times more polluting than even flying, disturbs everything living in the sea, are epidemy hotbeds, routinely reject untreated water into international waters, have questionable working conditions for the crew) and not experiencing life. Most people have never been on a cruise. I don’t think they’d say they haven’t experienced life.
There are places nearby wherever you live that you can visit and that don’t require sailing across the ocean in ye olde ship, flying, or taking a cruise to experience. And they’re just as beautiful, relaxing, and would provide the clarity/relaxation discussed in this article.