@doschicos, my son went to Bonnaroo and I was judging by his description. Lots of drugs in his report – including among his friends – but I take your point that it is optional. My biggest concern was not drugs (although I’m not sure my daughter at that age would not have experimented) but for her physical safety. But, I don’t have direct knowledge about Bonnaroo.
I have been to most of South America for work and/or vacations – I’m missing a few countries including Chile. But, I’m in Brazil several times a year and wouldn’t send a single female there. I agree that it is hard to lump regions together – Uruguay when I was there seemed pretty sleepy and pretty safe. I haven’t been to Argentina in a while. Seemed fine, but I was busy working. Here is the State Dept report on safety there: https://travel.state.gov/content/passports/en/country/argentina.html. And, in a number of Latin American countries, what people get used to and consider safe does not meet my comfort level. In Brazil, everyone I know has bullet proofed their cars. In Mexico (where I’ve been probably 50 times for work and holiday), I was driving around with a client in Cuernavaca where we were having an offsite retreat. My Mexican colleagues assured me Cuernavaca was safe but as we drove past the zocalo at night, they expressed surprised that families were out there in the evening. I love Peru and have been there a number of times but was robbed at gunpoint there once many years ago. I love Colombia but there is a kind of tension in the air in Bogota even though it seems safe. In Thailand (I think) and Vietnam, families took my daughter in when she was traveling alone or in a small group. But, I take your point, you need to be careful wherever you are and there will be dangerous parts of safe countries and vice versa…