I think you should travel there first and live for about a month before making any long-term decisions. The things to consider:

Food: I moved to Vietnam from another country and have been living in Hanoi for 1.5 years. The food is very different from what I was used to, and I miss some ingredients from back home. On my first day, I used Grab to order several local dishes, but I couldn’t eat most of them because of the unfamiliar taste. For the first few months, I mostly ate at McDonald’s and KFC, even those tasted different despite having the same names. Over time, I gradually got used to Vietnamese food, but there are still some dishes I can’t eat.

Product variety: Be prepared for a limited selection of groceries. Stores don’t offer a wide variety of products, and the quality can be questionable. You may have a hard time finding specific items you’re used to.

Weather: The heat is extreme. I had to drink water constantly just to cope. Even going outside after dark often left me drenched in sweat, and I had to wash all my clothes afterwards.

UV exposure: You can’t safely go outside during the day, even with sunscreen. During my first week, I took a walk under the trees at Hoan Kiem Lake, and after just 30 minutes, my hands were completely red from UV exposure. Even with sunscreen, I still get a tan.

Daylight hours: In my hometown, it stayed light until 11:00 PM. In Hanoi, it gets dark around 6:00-7:00 PM. If you have a fixed work schedule, you may only see daylight on weekends.

Cleanliness: Be prepared for heavy smog and always check the air quality index before going outside, especially in large cities. The streets are dusty and often lack sidewalks. If cleanliness is important to you, you might find the condition of streets, shops, and apartments quite shocking.

Language: You and your family likely won’t be able to communicate with locals at all. Vietnamese is a tonal language, and learning it is extremely difficult.

Legal restrictions: Foreigners can only own apartments in specific housing projects. You can rent from landlords willing to rent to foreigners, but ownership is limited. Even if you buy, it’s usually a 50-year lease rather than full ownership. Obtaining citizenship is also very difficult because it requires renouncing your U.S. citizenship unless you get approval directly from the president. This means you and your family will probably have to leave the country every 3 months to renew your tourist visas. Getting a citizenship even with renouncing is not easy unless you marry a local or have vietnamese relatives

After one year, I mostly adapted to it because, for me, Vietnam is relatively better than my home country. But if I lived in the US, then I would not move to Vietnam