There being totally different personalities that just don't mix was something new to me when I started university in a different part of the country. Totally changing my social circle and meeting entirely new people was an eye opener. Growing up I thought that with a little conversation everybody could come to a single conclusion that would benefit everyone and work together. But now I know that there just are different people that want different things and there is no way to please everyone. And some even actively work against others just because they don't like them without a valid reason.