I could say the same about your friends. I’ve seen people with no innate musical talent try and learn to play an instrument or sing and it was painful to listen to and to see in the kid. After a while they just gave up.
I understand your point. The way I see it, teaching a kid at a very young age, when they are learning language, by surrounding them with good music is a theory that I have seen work
Americans wait until a kid is trying to socialize after school to sit them down with a stuffy teacher. It’s too late
Exposing a newborn to classical music is never a bad idea but there are solid theories that state this is very helpful to their overall development
Making an elementary age kid who is not good at or is not interested in music perform is abusive and unnecessary
Music does not have to be performed in front of an audience