To your point, however, I do agree. I think one of the major benefits of physical media (or even digital media as long as it's entirely self-hosted) is that you can enjoy it entirely without surveillance, and that it's much more resistant to censorship. Being able to read about and understand how people lived, thought, and created in the past is incredibly important, and it's something we should preserve for the benefit of future generations, even if they might sometimes contain things that one might not necessarily agree with today.
Where did I say that? Obviously it is nice to be able to hand things down to one's children. But what I am questioning is whether the envisioned scenario (children of the future being enamored by dad or granddad's old books) is really likely to happen.