Mejor Centígrado que Retrógrado

I would suggest that the arrogance here lies with you. You know nothing about the people that you castigate, calling them "disrespectful" or "arrogant". I simply made a post, while sitting in my home in the USA and looking at a weather app that reported the current weather conditions in Zihuantanejo and the temperature was listed in Fahrenheit. I'm sorry if that somehow ruined your day. I was certainly not "traveling" in Mexico or anywhere else at the time, was not running through the airport or mercado screaming, "you locals must conform to the measurement system that I grew up with, or else." I have never insisted that anyone "conform" to anything when traveling abroad. When in Mexico I don't complain that items are measured in liters or kilograms, I find it enjoyable to do mental conversions to the measurement system that I grew up with and have lived with for over 60 years. It's not my fault that the US uses the system that it uses, and I doubt that the US government could care less what my thoughts are regarding it.

It might be a good idea to look in the mirror before calling others arrogant or disrespectful.