Back when my son was about 10-11 years old we bought him a train set for Christmas and he enjoyed it for only a while.
I have a finished attic which would have been a perfect place to set up a layout and get into some serious railroading.
I bought some model railroad magazines and talked about layouts, scenery, buildings, tunnels and all that, but he just wasn't interested so the idea died.
I think that railroad set is probably still in the storage area in the attic 40 years later.