The problem with printed books is issues suffered by the visually impaired. It's not an issue solely with font size; printed books have no dark mode. If you're a digital nomad, weight is an issue as well.
I used to work in that field and procured braille media for visually impaired people. In the US state that I live in, light-weight print-to-order braille books are free for qualified low vision students, especially in an education setting. Unfortunately, in most other states free braille media may not be true. On the bright side, thanks to the power of AI, blindness may be a thing of the past, even for people that have chronic blindness. That would be one area with AI can benefit people if used correctly.
If it helps, the bright white pages yellow with age.
It'd be nice if dark mode caught on as an option. https://darkeditionbooks.com/ tries, but it looks like they don't have much more than works in the public domain.