Last week I had the honor and pleasure of visiting Mexico City with a friend of mine. For the month ahead of the trip, we brushed up on our Spanish skills on Duolingo to prepare for the trip. I had taken three years of Spanish in high school but that was many eons ago. Some of it came back quickly, and some of it was a cloudy memory. Starting to get a little concerned about two weeks before the trip, I searched the percentage of people that speak English in Mexico City and the consensus was around 5-10%. After reading this, I hit the lessons a little harder every day,…