A plethora of studies suggests that music lessons are a key to success. Improved language development, increased IQ, higher test scores, and better discipline (the list goes on) all correlate with music lessons. 

But the real benefit of music lessons is learning to be musical. Music is a profoundly human thing. Music fosters emotional connection. Our emotional experiences with music tell a story about who we are. Musical emotions reflect our memories, experiences, preferences, motivations, interests and personality. It brings us into a deeper connection with others through the bonds of community. Music is therapeutic. It helps manage the pain and stress we face in life. Music is deeply connected to our memories. Music can trigger memories and elicit an emotional, visceral response even in people suffering from the late-stages of Alzheimers.

Musical instruction develops in kids (and adults) a deeper connection to music. It opens their ears. A beginning student often can scarcely tell two notes apart. But with training they begin to hear and understand music in greater detail. It provides a path to gain an inside perspective on the music that we love.

It is important to develop a personal connection with good music. And there is no virtue in this music being "classical" rather than popular and contemporary. Good music exists in all styles and eras. A goal of music instruction is developing a life-long enjoyment of playing an instrument. No one ever regrets learning an instrument. They only regret quitting.

Whether a child takes electric or acoustic guitar lessons, there is a far greater chance than with any other instrument that they will be playing long into adulthood.