Millions of drivers face that adjustment when they travel abroad. Generally, most of the world drives on the right. The U.S. does, and so do a majority of other countries. But Britain, Japan, Australia, and Pakistan all keep to the left.
Healthcare in the U.S. can be expensive, with doctor visits costing hundreds of dollars, along with the cost of prescribed medications and procedures. If you’re hospitalized, a mere 3-day stay can quickly add up to $30,000.
Family immigration can take years. The F4 visa is a good example of how slow U.S. immigration can get. It's for the brothers and sisters of adult U.S. citizens. If you qualify, your spouse and unmarried children under 21 can usually come along, or follow you later, as derivative applicants.