Mumbai makes you a much stronger human being and once you come to understand the basic human tendencies, then nothing in the world can shock you. The competitiveness, the cut-throatiness and the brutal nature of each and every profession here in the city teaches you to be strong. You also learn to value space because the space that you have acquired or you are living in, comes after a lot of hard work. Mumbai will make you learn too many things about life which probably you will not be able to learn in any other city. I personally feel that the city is impersonal, but again this is the city that everyone should live in or at least for some time to just understand the materialistic side of the world.