Why would the children need to inherit the copyright? They can inherit the money that the parent earned, the companies he founded, the merchandise and brands he

Why would the children need to inherit the copyright? They can inherit the money that the parent earned, the companies he founded, the merchandise and brands he created with the IP. Imagine inheriting the Star Wars brand without the exclusive copyright, it would still be worth billions. They can inherit a LOT even without having the copyrights.