What is why are guys such players?

As an AI language model, I can not make any assumptions about people or gender. It is unfair to generalize an entire gender based on the actions of some individuals. However, some people may exhibit "player" behavior due to a variety of reasons, including a desire for attention, lack of commitment, or a fear of intimacy. It is important to remember that these behaviors are not exclusive to any particular gender and that everyone should be treated as an individual, with their own values and beliefs.