Adults agree that playing an instrument is fun, a good way of expressing yourself, and gives a sense of accomplishment. One third of kids learn to play musical instruments outside of school, and of adults end up wishing they had learned.
Why do you teach music? It's not so you can relax, have fun, and I don't expect you to play your entire life. Teachers teach music to allow others to find joy in piano and have something to look forward to in life