The Piano is an Amazing Toy.

If we think of all the instruments as toys the piano is the king of them all. What other instrument allows you to sit for such long periods without getting tired.
The example I gave of the accordion is good because it does demand a kind of flexibility and nimbleness. As an adult I honestly see that some instruments were not designed for the adult body. The ease at which an adult can play any instrument is a sign of why it is popular. Next to a piano the easiest instrument is probably the Ukulele. But the piano is much more rewarding because of it’s range of dynamics and tone.