Part of the problem here is that people (including A German family see link below) treat national Parks like a wilderness Disney Land.
AI6YR saved some dude life in Death Valley by geolocating the pic of his feet but many are not so lucky.
The number of times I have found people in passenger cars running trails that I can barely make in my MDX with NO water and no gear in 44C heat is mind blowing
https://otherhand.org/home-page/search-and-rescue/the-hunt-for-the-death-valley-germans/