Culture Mysteries

I've learned english for over half of my previous life and while i living in Vancouver, there are still many mysteries of the different culture to me. First of all, I don't really understand the "emergency situation" here which means: why every time there's someone calls 911, ambulances, fire brigade wagon and prowl car will all go into actions. Sometimes there is just a case of small car accident or someone lost a dog. However, when there's a real accident like a fire or break into, police car will always be late. I know this is called "respect to life" but sometimes i just feel like they are wasting resources. Secondly, Canada has perfect social system and devote itself to serve better living standard to citizens in this country. My question is : why going to a clinic takes such a long time to line up? In my opinion, whenever someone is sick, buying some medicines from the shop and cure yourself at home is the best way. So long as your situation is not that serious, never go to a hospital! And where does our MSP fee use for? Only in case of someone is dying? I have no idea. Thirdly, why government shut down the Mental Hospital? That makes all those people who has mental problem distribute in every corners of this city. Is this government really poor so that they can not even run on a hospital? They spend huge amount of money on arranging for those people, only for their food and drugs..but not taking care of their treatment. Is this the real "respect to life"? Moreover, Canada is an immigrantion country, many kinds of people from each part of the world are living here. Why some of the native people here still have racialism? A lot of people who immmigrante in this country have contrubuted to the society but still be discriminated. Finally, the most "mystery" for me is that: Some of the polic man always hide in the corner and catches drivers with only over 1km speeding and some tiny things. Who is going to take care of the gang? Who is going to catch those criminal? Who is response for the drug deal? Who should stop those gun fight? I'm so curious of their functions. That's the reason of civillians' wage are lower and lower but polic man, the highest of them get over 100,000 every year.