I’m too old for Roald Dahl. Only just, but it’s enough for me not to have read him as a child. I began reading his books when Son did, mainly so that I would know what he was up to. Son grew faster than I read, so halfway through Roald Dahl I had to move on to other books. Daughter didn’t really read Dahl, as much as watch the films, so I lost an opportunity there to catch up.
I know I have said this before, but to my mind his best book is The Vicar of Nibbleswicke, which is still capable of reducing a grown witch to tears. Tears of laughter and losing it completely. Try it. Can particularly recommend reading it aloud. See if you can. I know that people my age shouldn’t enjoy words like krap and pis quite so much, but I do, so help me dog.
Second best to read are Roald Dahl’s autobiographical Boy and Going Solo. But that’s just my opinion.