I have always thought of music as a living, organic entity common to all of us. I have taught thousands of piano students and have never encountered one who could not learn to play, though I have encountered many who THOUGHT they could not play (or sing, or write, or draw), no matter what difficulty they had to overcome. Dyslexia, for instance, makes reading music harder but not impossible.
The psychological, emotional and even physical benefits of playing an instrument are well documented, so I won't dwell on them. But I will tell you a bit about myself: I am a member of Music Teachers National Association and of California Association of Professional Music Teachers, with state and national certification. I have a California credential in piano. I am an emerita of Skyline College's music department and still play with a community orchestra and chorus.