(I know that's Hams's replying to the OP, but to follow up Hams myself...)
I was pretty much a bookworm from a very early age. When in Junior school (whatever that is in K-12+ notation, but 8, 9, 10-ish in age, give or take Summer Baby adjustment) I was also not the only one to 'run out' of the grade-appropriate reading serieses and 'ironically' go back to picking up the books from the bookshelves in the Infants (immediate years post-K) area of the school. But I think I was the only one to spend playtimes rearranging the limited reference shelving back to Dewey Decimal rather than
whatever other order they were in.
This continued into Secondary school (I spent a fair few lunchtimes in the old book store off to the side of the rarely used but significant library in
that school, and probably arranged to take home a few of the more out-of-date ones, I recall a pre-moonshot book on space exploration, barely more accurate than Tintin In Space, I suppose) and I devoured the public library stocks as well.
But I know a few of my peers were probably bibliophobes to the day they quit school at 17-or-so. And some were probably
barred from unaccompanied wandering in any library, for good reason[1].
In short, I don't think it's a bad suggestion, but you need a preference (or need?) mechanic to vary things. And just because I could check out more than half a dozen+ books from the public library, then return them read before the week is out to pick up another ½d+ again, I'm sure that this was not the normal allowance for a child's ticket. Some unpredictability needs to be built in as to whether books are read or merely relocated (half way down the stairwell to the magma furnaces?) during pre-maturity, and that should definitely continue (or be reinforced, or
maybe reversed) in adulthood.
@Uth: That too. Mix it up as to what it mean, of course.
[1] Remembering one such individual, with a particularly distinctive name, I just looked 'him' up. Assuming he's not the 90yo who has the obituary in California, the other example is listed at Companies House as a director of a firm, but has a birthdate
two years prior to mine. I mean, if they actually held pupils back a year, in our system, I can believe they held my guy back two, but I'm not sure he'd have been there if he no longer had to be.