I do not know about today but some years ago Steve McCurry only took 2 or 3 lenses with him for an assignment and one of those lenses was his Nikon 50 mm f1.4, most probably his most used lens.
I am no professional photographer but when I travel I carry the least amount of gear I can, like an Olympus M43 body and a couple of lenses, like the 12-40 f2.8 Pro and the kit 40-150 f4-5.6. It could be my Nikon D610 with the 24-85 or the 28-105 and a prime 24 mm f2.8 and less often with a 70-300 lens.

My personal experience is that in a majority of cases we take with us more than we need.

I'm glad I got married over fifty years ago, when I could afford an engagement ring. An ad for rings popped up here - $72,000. I don't think so.

You know, years ago, an engagement ring did not contain diamonds. That was the brilliant idea of the diamond industry. You'll see that in old movies, or movies set in the past. You've heard of the movie "Diamonds are a Girl's Best Friend." The diamond industry was behind that. The diamond market is totally controlled, and the prices are set artificially high. There is no shortage of diamonds.