It only seems that way at the beginning because you have yet to learn anything about the girls staying at the hotel. Once you start to learn about them and their stories, you can start to see things more clearly, and begin developing a bond with them.
It's a lot like real life if you think about it. When you first meet a person, you know almost nothing about them. As you learn more about them and develop a relationship, you begin to see them in a different light, either in a good way or a bad way, depending on what you learn.