Mainly because states are more susceptable to fluctuations in their internal economies. If you want to talk National Forests, what happens when a state is having a hard time balancing its budget and decides to sell off public land? Right now, money can be funneled from all states to protect vital lands in one state.
The whole is stronger than its individual parts
if people in a state want to sell lands in that state then it's no one's business but that of the states residents.
If you don't live in a state then you should have absolutely no say as to what is or isn't done in that state.
I'm of the mind that National forests should be left completely wild and that people should use the lands at their own risk no building roads or ranger stations or visitor centers just wilderness.
In that case...we disagree
Our national forests and parks are our national treasures and their disposition should not be left up to the whims of individual states.
Yeah. Let's leave them up to the whims of the Federal government and unelected, unaccountable bureaucrats. The Democratic solution to everything.