Do you have a retirement reading list? Also, do you think your reading habits changed throughout the years?

I was pondering on this after trying to read Rayuella, from Julio Cortazar. I was gifted this book on christmas and really liked the concept. However, I felt like I was not enjoying the book because it felt like it was demanding, and it definitely required morw attention than I could give it at the moment. This is not the first time it happens to me, and I can recall some other times when I tried to read more demanding literature. Hence the concept of the retirement reading list: books that require some time and that I feel like it is not likely that I have that time to enjoy them fully while I work and have some other responsibilities.

This is in part also due to my reading habits. I like to read whenever possible: lunch break, while waiting for transport, before bed, in work lulls, etc. This, alongvwith th fact that I don't like to juggle multiple books at the same time, makes it impossible for me to pick a "heavier" book and read it for a while then put it down and go do something else. Still, I wonder if this is something that changes with age. Older people, do you feel like your reading habits have changed throughout time? Do you enjoy sitting with a book that requires more of you, now that your life is less demanding? Does the concept of retirement reading list makes sense to you? I am very curious about how people percieve this and how they feel towards it