Originally Posted by Efrem

The other way to look at is is that you paid the normal fare but Peruvians get a discount.

Besides, this isn't unique to Peru. Same thing in lots of places in Russia. (The signs with lower admission fees for Russians are generally just in Russian, so most non-Russians can't read them.)

Also, the U.S. isn't off the hook here. Only U.S. citizens (over whatever age) can get a lifetime National Park pass. You often have to be a resident of a specific state or city to benefit from lower fares/fees/whatever. It's a worldwide phenomenon, based in part on the fact that non-residents/non-citizens don't vote there but locals do. Some you win, some you lose.