I generally agree with metric superiority, but 38° is such a random temperature. Whereas if you're over 100 you're too hot. Fahrenheit is the superior temperature unit. Fight me.
I agree when it comes to weather as well. 100 is too hot to be outside and 0 is way too cold to be outside. You don't have to have decimal places on thermostats
0C for freezing is better than 32F though. Then you can count by 5s and 10s in celcius for weather till you hit 30. Above that is hot. Having a range of 30 points on the thermometer for weather is easier to gauge than something that goes across almost double the number of points.
When I'm talking about weather, I don't necessarily care about the freezing point of water though, I care about the temperatures at which I feel uncomfortable or are in potential danger.
At the end of the day though, I think it really just comes down to what you grew up with using. I'm comfortable with Fahrenheit because that's what I grew up with, people who grew up using Celsius are comfortable with that, and there's nothing wrong with that. It just means there might be a translation step when talking to people of different backgrounds, which is okay.
For sure, I agree it all comes down to what you're used to. To answer your point about the freezing point of water, it is pretty important especially if you're monitoring for ice on the road or preparing your house (pipes, etc.) for it. That's basically my reference to decide I'm not leaving today and prepping my house instead.
No, it's not. I'm people and I don't feel like Fahrenheit. Lower than 10°C is cold, lower than 0°C is freezing (quite literally) and warmer than 30°C is too hot. See? Easy to remember numbers. Almost as if people feel numbers they're used to.
Because they are accustomed to Fahrenheit. I have no idea how hot/cold 80F is, apart from knowing it's colder than human body temperature, and hotter than inside temperature, but that's just from knowing those numbers in Fahrenheit, via the internet. I have no relation to them, it's like a foreign currency, know what I mean?