I’m not sure why but kids like to watching Trash trucks I’ve develop a game where they can pick up trash all around town.
And the trucks look totally real. And they love it.
Good for your son now he can have a great game with Garbage truck, but that dosent mean every kid on next door will like it. the game looks more like a simulator.
I prefer advising you to pursue game development on keeping educational perpective, If you want to introduce it on appstore. You should also target kids based communities to give it more spot light. The game graphics and your intentions are nice, good luck with that.