Because most places have aircon...at least in the main cities anyways. Top tip, don't jump in a car in shorts and try to put on the seat belt in summer instantly, your hands and thighs won't be happy. Learned the lesson a good few times.If your uncomfortable with the heat in your attic, how will you cope in Australia?
Next couple of days should be even more fun...33 and 35 forecasted. I am decamping to this aircon'd cafe near my place or just find a place next to the river which is breezy.
The problem - as I said before - is not heat per se, it's the lack of crossflow ventilation. At my old place, I was totally fine with even higher temps like we experienced last summer.