Because 7 billion people trekking to Everest would transform the character of the place so thoroughly that the reason people started doing en masse in the first place would be lost to history. Tragedy of the Commons 101.
The way we prevent these tragedies is via regulation. Needless to say, this demands time and expense that could always be used elsewhere, so if there's a natural barrier limiting access, then by all means, rely on that instead.
Once you open something to everybody, you've got to deal with...everybody. Generally speaking the people who are trying to profit from the initial development have zero interest in carrying the costs their ventures impose. Essentially, they're in the uncompensated extraction business and yeah a lot of people take a very dim view of that and will quite reasonably use any and all measures thay can to block what amounts to theft from the commons.
Because 7 billion people trekking to Everest would transform the character of the place so thoroughly that the reason people started doing en masse in the first place would be lost to history. Tragedy of the Commons 101.
The way we prevent these tragedies is via regulation. Needless to say, this demands time and expense that could always be used elsewhere, so if there's a natural barrier limiting access, then by all means, rely on that instead.
Once you open something to everybody, you've got to deal with...everybody. Generally speaking the people who are trying to profit from the initial development have zero interest in carrying the costs their ventures impose. Essentially, they're in the uncompensated extraction business and yeah a lot of people take a very dim view of that and will quite reasonably use any and all measures thay can to block what amounts to theft from the commons.