- kids like throwing switches (turnouts)
- kids like operating accessories and operating cars; have plenty, let them operate them
- automate less: it's better to having a crossing gate controlled by a switch they have to remember to push, rather than triggered by the presence of a train. Remembering in time is part of the game.
- Scenic realism seems not important to most of the kids.
- kids like to move vehicles, people and animals; let them
- Kids like lights
- Kids like things named after them and also given familiar names (towns, industrial and commercial buildings, schools, etc.
In addition to the above kids love tunnels and bridges along with crossing tracks. and buildings that light up for running in the dark
Jerry