Is travel insurance mandatory for visiting the United States, or is it just strongly recommended? Since healthcare costs in the U.S. are known to be quite high, what kind of coverage should I look for in a good travel insurance policy? Should it include emergency medical treatment, trip cancellations, lost baggage, or coverage for COVID-19-related issues? What’s the difference between insurance for tourists versus students or temporary workers? Are there U.S.-based providers or international plans that are preferred or recognized more widely?