@Strollas yeah, it just doesn't make sense. All that means that he could've changed and made his lifespan worth more, and he sold it for nothing in the end
everyone is mad at the grandfather but who do y'all want him to give the money to? They also said that tetsuo and kasen cut ties with the family so there's no way he knows about all this. Plus, she's 19 or 20, so not a kid (but that last part is questionable)