Teaching someone to read is the best gift!
I read mostly for entertainment and for the love of stories and exploration and adventure. I love John Scalzi, Asimov, Ann Aguirre, and M.R. Forbes in the scifi realm, and so many other authors outside of that. One of my favorites is David Baldacci — I am currently halfway through the second Atlee Pine book of his (the newest one)!
And you’re right, they make you think and then also entertain and explore worlds you never knew.