Does having dual citizenship have any downsides?

In 2016, my wife and I embarked on a road trip together across central Mexico — starting on Jalisco’s Pacific Coast and, over a month later, ending up on the Gulf Coast of Veracruz with innumerable side quests along the way in Michoacán, Guanajuato, Querétaro, Hidalgo, Mexico City, Estado de México and Puebla. It wasn’t our first time in Mexico. We had, after all, spent our lifetimes visiting our…