I hope to do what my mother-in-law did for me (if I live long enough). She's well into her 80's and gave me some vintage albums ... Sarah Vaughn, Ray Charles, Gilberto, Nancy Wilson, and even a really nice Tony Bennett, among many others. They were fairly well preserved and I went through and cleaned them up, so it made a nice addition to my collection. My wife says it's the that music reminds her of Sundays growing up.
I've tried to introduce my grandson to jazz (he's 11 and plays the sax). Started with the piano at 5, and I swear he did some stuff that sounded like Monk! Ok, that's a bit of an exaggeration; but I really hope he develops a genuine appreciation. It would be great if everything passed to him. Otherwise, who knows.