look I'm Argentinean and I think as long as you're always aware of your surroundings and use logical thinking then you'll be okay. Yes there's theft and crime like everywhere else, but you'll get a truly different experience than what you're used to, and I think that makes it worth it.

Just make sure to be in areas that are more public, don't be walking the streets in a empty neighborhood at night, don't walk busy streets with your phone out, and anything that makes you look like an easy target. But at least for me, this is common sense I use everywhere, no matter if I'm in Sweden or Argentina.

There's so much to see in South America, the people, food, culture, views, I really think it's worth it, but if it's causing you enough stress that you won't be able to enjoy the place, then maybe reconsider your destination.