Many people go through phases in life where they want to be in a rock band. So, they buy a guitar and intend to take guitar lessons so they can learn how to play it. While rock stardom may not necessarily happen from learning to play the guitar, it can still be an enriching experience. Here are three reasons you should start playing the guitar. 1. Entertainment value. Imagine you are at a party, or even a wedding, and the entertainment has failed to show up.