Somebody needs to ask RFK Jr this:

[haele]

71. Depends on your insurance company.

Federal programs like Medicare/Medicaid (and Tricare, the VA), ACA plans and some of the big companies will pay for vaccines, but there are also smaller unsubsidized commercial holdover group insurance companies that are available for small businesses (and at least in this border city) are bi-national; these can be used in both San Diego and Baja (Mexico) to cover US residents and their dependents/families that might live in Mexico, along with Mexicans working in the US on work visas.

Our friend, a US citizen, works for a cross-border employer near the border. So many of the US citizen employees live in Tijuana because of rental costs in town - last I heard was that $1200 a month can get you a 2400 sqft compound style house on a 50 - 100 year lease from the Mexican Government in a nice professional neighborhood (Mexican families of managers, doctors, lawyers, dentists, engineers) on a lot that's comfortable for a family of 6 or 7. And you don't miss any amenities you can get in the US.
You do have to pay cash for police protection and private schools, but if you're making over $50k a year and don't mind iffy infrastructure (from the cross-border Gringos looking for housing) and a long, odoriferous commute across an international border, it can be quite affordable.
The Cartels aren't a big presence there. They generally leave Americans alone, however, stupid Americans can get in big trouble if they don't pay attention to their surroundings or the culture they're partying in.
You don't even need to be fluent in Spanish to begin with, pretty much everyone speaks some English in Tijuana, but you will get fluent soon enough interacting with neighbors.
We were considering it, but the grandkids paternal side of the family are racist gits that are panicked that the girls will maybe make friends with Mestizos rather than Americans or "White" Mexicans.

Haele