@Nessential: You would be surprised to see how many people acquire a healthy reading habit after they attain adulthood. We at
BodhiSutra encourage all our students to develop a reading habit, and these are some of the tips that have worked really well with adults who were not "childhood readers".
I agree, the best time to initiate someone into reading is during childhood. However, the hope is not lost even if you have attained adulthood and were not a reader during childhood :) The point is, reading is such an important ingredient for success; it will almost be suicidal for anyone who wants to achieve success to say, "Well, my mom and dad didn't make me a reader so I can't become a reader ever".
It may be tough because it asks for introducing something into your daily routine that does not exist right now. However, it's worth it and it's very much possible :)