There are many kinds of people out there. You can look at the more common or even cliché stereotypes like: nerds, douche bags, the lazy guy, the wigger, sluts, the romantic guy, the artistic guy and so on.
This view on the world and people around you is called “hokjesdenken” in the Dutch language. A synonym for this word is categorization. It is the opposite of “out of the box thinking”, which actually is a worldwide appreciated quality to have.