HOT !!!

With most of the major exams and test settled for the moment, I finally have a peace of mind and can enjoy my free time at home browsing the net and watching series online. Though, one big factor is kind of bugging me at the moment.
After staying in Russia for a few years, me and my friends concluded that one can't judge Russia's weather according to the appearance of the sky during the morning. For example, yesterday morning, it was so bright and hot, not a cloud could be seen in the sky, for most, it would seem as though there would not rain. But, unfortunately around 4pm, the sky suddenly turn dark and it rained for quite sometime(in Russia, it seldoms rain more than 15minutes.)
What is bugging me the most at the moment is the heat of the weather, since it was spring not long ago the temperature was around 10 to 20 degrees Celcius. But currently it has go up to around 25 till 32 degrees. I am actually wondering if I can't handle the temperature of 32, how am I going to stand the heat in Malaysia when I go back which is around 35 ?
The most important factor to me is that I have to wear long pants to classes in the university no matter what the temperature is while all the girls are able to wear slippers and short skirt and pants for class.
Didn't the girls ask for the same treatment as the guys does? So I would like to ask, why are guys not allowed to wear short pants to classes when it is so hot outside that an egg would fry if left on the road?