In defense of Fahrenheit...

I grew up in the US, but I live in Europe now, and I am a scientist by trade, so I generally have solid familiarity with both scales. First off, for scientific purposes, measuring temperature in celsius is unquestionably the better temperature scale. However, when measuring temperatures that people experience in their average day-to-day, using Fahrenheit makes a lot more sense.

Pretty much all of your daily life exists between 0 and 100 °F. The coldest temperature you typically experience every day is your freezer/icebox, which is around 0°F, while the hottest temperature you experience is your shower, which is around 100°F.

0 to 100 °F is roughly -20 to 40 °C, meaning that not only do you need to deal with negative numbers, you also need to use decimal places to get the same degree of precision.