That gives me an idea.
Why not have a game that runs on your cab.
you can program the game to put pictures of the family in.
When the game is run, have several boxes that appear on the screen.
Maybe with pictures of cartoon animals on each box.
Have the child choose a box with the joystick then press P1 action 1 button.
Have the box open with a family members picture, with that family members voice saying "Peek a boo!"
Then when child presses P1 action 2 ,have the box close with a different cartoon picture on it, maybe a check mark.
Once the child has all the boxes checked, they scramble and he(she) has to find the family members again.
It would be a great way for the young child to learn the cab controls.
A game such as this could be played on the computer keyboard too.