Your descendents are literally your legacy.
Doesn't matter if you know the Walt disney kids or not, they are owners of Disney the company, same for all the Ford kids, same as Steve Job's wife, and etc.
Make believe your children don't matter, thats what certain people want you to think, while they make sure they take care of their kids, whether you know who they are or not.
You obviously don’t know what literally or legacy means.
People aren’t your legacy, what you leave behind for people is your legacy. To spell it out further, Walt Disney’s kids are not his legacy, his legacy is the company and its associations that were left behind.
Don’t try and flip this from saying your kids are your legacy to something about not taking care of your kids. Don’t know how you made that leap.