“Men do not quit playing because they grow old; they grow old because they quit playing.” ~ Oliver Wendell Holmes Sr.
I think there is a great deal of truth to this statement. Being grumpy ages you, not just physically but in a far more involved way than just how a person looks. Stress is a known killer and in modern life we are constantly bombarded by it. It is good for the soul and the body to reject all that and take a leaf from children’s attitude to things and just play.