20C is room temp. 10C is chilly. 0C is cold, anything below -20C is dangerously cold. 30C is hot. 37C is body temp, anything above 40C is dangerous, 50C is summer in Arizona hot.
37 is considered slight fever. 36 is more like it
37 is the usual round number given for the body temperature, not 36.
I don't know which country/region that might be, if you look at a picture of hg thermometer - 37 would be marked red (which doesn't make it precise, of course). Young children do have higher body temperature. There is even pharmacy chain 36.6, pretty much any rounding I have ever heard - 36C.
As for quotes, here is another:
Most people probably grew up being told a body’s normal temperature was 98.6 degrees Fahrenheit (or 37 degrees Celsius). That widely accepted number originated from a study done in the mid-1800s. But newer studies suggest the average person today actually runs a little cooler than that — somewhere between 97.5 F (36.4 C) and 97.9 F (36.6 C). [0]
[0]: https://health.clevelandclinic.org/body-temperature-what-is-...