[notarobot123]

A piano is not inherently a better musical instrument than a harmonica. You could argue that a piano is more complex and more puzzle like requiring more of an investment to learn for similar results.

A harmonica has a much lower barrier to entry and can be mastered over years of practice. So can a piano but with a lot more effort for more or less the same result. They both make music after all.

Ultimately, it comes down to familiarity and basic preferences. Pianos and harmonicas are basically the same if you've used them for long enough and you can get the same results with both (but a harmonica requires a lot less fuss and "games")

[I wish piano players would stop looking down on harmonica players - stop being so tribal!]