(I don’t mind this system actually, but if I were paying taxes in Thailand and still had to pay foreigner entry fees everywhere it might bug me.)
My aunt and uncle took the first class as part of their far more expensive Peru tour, and were not exposed to the direct cost, but judging by the pictures, it was luxurious.
The only exception was where people insisted on being paid in American dollars. I'm not American so it never occurred to me to buy and bring American dollars to any country outside of the USA. We treat American tourists with a certain amount of eyerolling when they try to use their money in my country, but I have learned my lesson that it is a good idea to have an emergency stash of the currency of dishonesty when travelling abroad.
I recommend that you do some research about the economics of any country you visit. As you've already somewhat discovered, many places in Central America and South America will actually prefer payment in US dollars because the official government exchange rates from their local currency to dollars is extortionately unfair and not accurate to ForEx markets, this combined with high rates of inflation for the local currency and regular currency "resets" mean that people don't want to have their savings denominated in the local currency.
I don't know why you consider dollars to be the "currency of dishonesty", but all throughout the Americas, dollars are generally the highest valued currency because the US dominates economics and trade relations in the region. I imagine the same may be true in other parts of the world but they might preference other currencies rather than dollars (Ex: I found in some parts of Eastern Europe and Central Asia that Euros were accepted in preference over local currency).
Any time you travel to a new country, do your research in advance.
I was not trying to imply Americans are dishonest. I was trying to imply that insisting on the use of foreign currency like USD as the sole medium of exchange, or any other black market activity if it comes to that, is a dishonest way to make a living.
And sure, I understand why the black market exists from a socioeconomic point of view. I have learned my lesson about travelling in less advantaged countries. I witnessed stuff in Peru that would make suburban Karen's head explode with apoplexy, and it was just considered normal and expected stuff there.
Agreed on that wholeheartedly. Visiting Peru was an interesting experience for me as well, and one that was deeply sad in many ways. There's such a visibily stark wealth inequality in Lima that's immediately obvious as soon as you deplane that is usually hidden away in other parts of the world. Lima is an amazing world-class food city, but most of that is found within Miraflores district which is a far cry from the conditions of most of the rest of the city or in the pueblo jovenes on the outskirts of town in the hills. The same is found in other parts of Peru as well, and in a way I am very happy for it because it made obvious to me things I had been able to avoid or put out of my mind in my travels elsewhere and made me more aware of how different societies exploit people and the role of the West in creating and enabling those conditions, my own role as a traveler included.
I was surprised, as I'd never thought to donate to these museums. He pointed out that he didn't pay tax in Britain, and entry tickets to a similar museum at home would be around £30.