But if you learned music at all previously then you’d realise you can play that stuff. If your parents like playing instruments or think it’s a good idea then you’ll have an expectation that it’s something you can and should do, so the impetus is key.
I didn’t learn to play guitar and until Uni because it was the first time I heard a lot of guitar music I really wanted to play along to.
I don’t think many (although everything happens) people hear music they love and then learn to play. I’m sort of leaving aside people who buy an instrument and then completely fail to spend any time on it and it just becomes useless furniture, but maybe you’re including that.