The best memories I have as a child are 'inappropriate' books (especially 'when I was five I killed myself' at ~12yo and 1984 at ~14.). I always had issues (disliked being touched, difficulties to empathize), but those books emotionally shook me, moved me so much, so hard I like to think I became a better version of me after reading them.

Started doing theater at 12 after Buten, started working as after school counselor for 6 to 8 yo kids and help them do their homework after reading 1984, ultimately becoming a youth camp counsellor at 17. Which were terribly outside my comfort zone, but Buten showed me how to improve myself, and Orwell how to improve the world (or at least try my best).

I personally wouldn’t choose 1984 for a 14 year old, but would consider it rather tame compared to modern fiction. Some of it would make the grocery store check out isle romance novels blush but also don’t contain any profound message.