Do we have the right to judge cultures?

My dad recently came back from Afghanistan where he had a project to do. He was showing me pictures of the places he travelled to and it was interesting and mind-blowing to compare living in Europe and in the Middle East. Different houses, language, food, clothes, habits, religion. See, Europe is a small continent where we have a lot of diversity between all the countries but in the end we are still very European and by that I mean similar in certain ways. We have a common history that binds a lot of nations together. But then as soon as you change continents you see what the world has to offer. You find entirely different cultures altogether. 

You can't always get what you want

While I was trying to sleep last night I couldn't stop thinking about a song that most of you probably know. It's called "You Can't Always Get What You Want" by Rolling Stones. The lyrics always come to my mind when things don't go as planned and I keep wondering why, why, why, why on earth, whhhhhyyyyy???? One of my best friends always says the word she hates the most is WHY. I agree. Mostly because when it comes to important stuff the answer is so hard to find. I had a rough couple of days last week. Days when you just keep asking yourself the worst questions ever... Why doesn't it work between us? Why does it have to be so complicated? Why do I have to live here? Why don't I have a job already? Why didn't I study this or why did I do this like that? Like I said, why, why, why...