Good breeding since childhood
I never thought about our hobbies or education like a good investments in the future.But once my mind was changed by a meeting.
When parents tell you( and you are a little boy or girl with a wind inside your head) about the use of good classes, it sounds like bla-bla-bla.... and you continue to do what you did before.
But once i was introduced to a fellow. We started to talk and i noticed, that he caught little intonations in the conversation and understood, what you didn't voice. I found out, that he was a winner in some musical competitions.
After that new acquaintances of mine (who was connected with music) also born out my notice.
And now i think, that all classes which we had in the childhood or we have now developed or develop now our abilities like music developed in acquaintances of mine the good feeling.