I'm glad that your grandfather was happy with his decision. But from a policy perspective, there's a question to be asked about whether it makes sense to spend

I'm glad that your grandfather was happy with his decision. But from a policy perspective, there's a question to be asked about whether it makes sense to spend tens or hundreds of thousands of dollars on treatments that likely kill people faster. Even if that is what those people want, their needs have to be balanced with others who need the scarce resources that are allocated to the health system. (On the other hand if this was an experiment and it just didn't go his way, that's another story. We need brave people to accept these experimental treatments sometimes to find whether they work.)