Only if you're a sucker and pay big bucks to a shitty US carrier. EU got rid of roaming. There are carriers in the US that offer flat rates in all supported c

Only if you're a sucker and pay big bucks to a shitty US carrier. EU got rid of roaming. There are carriers in the US that offer flat rates in all supported countries (like Google Fi: 135+ countries at time of writing). I'm based in the US, I lived in Brazil for several months last year. I stayed with Fi, still paid 10$/gb and 20$/month for unlimited voice/text, kept my number, and immediately had data access. As a side note, Uber was there, and we used it frequently.