I like playing sports, it get's my endorphins going! I love to do any kind of sport, it's exhilarating. But why would anyone enjoy watching it?
I like food but I don't watch people eat food?? I like playing video games and I like watching people play video games because they have good commentary.
Enjoyment can be explained by the release of dopamine, one of the chemicals associated with happiness in our brains. The reason why I don't enjoy it is because dopamine doesn't get released when I watch football. Why does dopamine release for you then?
You watched it when you were younger and you saw that your family members getting excited at each goal, so this created neurones in your brain that cause you to become happy when you watch football too. As a child, we learn what is supposed to make us happy from our family members. Mirror neurones are involved in our ability to learn by association and how we feel empathy for another. If you cry, mirror neurones will let up in my head and it will feel like I am experiencing you cry. Mirror neurones explain why you have imitated your family member's expressions of happiness every time you watch a football match and they also allow you to experience the game to some degree as if you were actually there and participating in it.
Girls don't experience enjoyment because they haven't developed the mirror neurones to empathise with the enjoyment of playing it. Research has shown that people are less likely to imitate behaviour and as a result enjoy observing it if they feel like they can't identify with the role model. In this case, all footballers are guys so therefore, not many girls will feel like they can identify. Many girls may not end up enjoying football because they were discouraged from learning to empathise with the enjoyment of it as a result of their parents for example.