About a week ago, I (mid 20s) began reading LoTR for the first time, despite having seen the movies long ago. I knew books are always richer in content than movies, but Tom Bombadil was the first radical departure from the movies that I encountered, and the weird encounter was an exciting switch that made me perceive the story I’m reading as new and different from the story I’ve seen.
The group has not yet arrived to Rivendell (so no spoilers please :))