"Hello World" is roughly equivalent to playing a random scale. If you can memorize a scale (even briefly), you can play the piano. You might not ever manage to compose a legendary piece of classical music, but you can impress your friends by jamming with a man jue or a gambhiranata.

Most of what I make is mostly or completely electronic, and I can barely listen to classical. If you think "learning the piano" and "playing piano music" are synonymous, that might be the problem. You can make a lot of interesting sounds if you hook a MIDI keyboard up to a computer.

(aside, the best investment I made was Piano Companion Pro. The scale DB is full of interesting scales from all over the world)