would be one of my lingering fears and Mexico has its share, although many other nations would be far worse. Even at 71, I'm still a naive country boy and stoic, and vulnerable to assuming people will be fair and truthful.
I think it would be a serious fear there for me because I don't speak the language which makes one even more vulnerable. I assume one would need to learn the local area dialect in addition to a working ability to speak basic Spanish.
The town you mentioned sounds very attractive and culturally interesting (from Wikipedia at https://en.wikipedia.org/wiki/San_Miguel_de_Allende )........
Today, an old section of the town is part of a proclaimed World Heritage Site, attracting thousands of tourists and new residents from abroad every year.
At the beginning of the 20th century, the town was in danger of becoming a ghost town after an influenza pandemic. Gradually, its Baroque/Neoclassical colonial structures were "discovered" by foreign artists who moved in and began art and cultural institutes such as the Instituto Allende and the Escuela de Bellas Artes. This gave the town a reputation, attracting artists such as David Alfaro Siqueiros, who taught painting.
This attracted foreign art students, especially former U.S. soldiers studying on the G.I. Bill after the Second World War. Since then, the town has attracted a significant number of foreign retirees, artists, writers and tourists, which has shifted the area's economy from agriculture and industry to commerce catering to outside visitors and residents.
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Enrollment at the schools rose and this began the town's cultural reputation. This attracted more artists and writers, including José Chávez Morado and David Alfaro Siqueiros, who taught painting at the Escuela de Bellas Artes. This, in turn, spurred the opening of hotels, shops and restaurants to cater to the new visitors and residents. Many of the American veterans who came to study in San Miguel would later come back to retire, some marrying and raising international families such as the Vidargas, Andre, Maxwell, and Breck families.
The town's cultural, foreign and cosmopolitan nature has continued since that time. The city took on a Bohemian quality starting in the 1950s with the party ambiance of many resident expats and artists. In the 1960s, Cantinflas promoted the area among his friends in the film industry. Hippies were taken in for haircuts by the authorities in the 1970s, and now the town is generally too expensive for the backpacking travelers of the 21st century.
The growing attraction of the town and its colonial buildings created a vibrant real estate market, which until recently has not been affected by Mexico's fluctuating economy. Many of the old "ruins" of colonial houses have been sold for more than a house in Mexico City.
Sounds almost too good to be true! Thanks for sharing and good luck!