My son doesn't read a lot of books during the day, but we let him stay up after bedtime with a book (and a reading light), and the 'breaking the rules' part of that was compelling for him, even when he was questioning reading by himself when he didn't actually have those skills (he would look at pictures). Encouraging reading after bedtime means often he interrupts what I'm doing at night to ask for a new book and sometimes stays up too late and has trouble waking up in the morning, but I think it's worth it. Different kids need different things though.