When do we wear a seatbelt?
whenever we ride in a car
When do we use an umbrella?
when it's raining
When is your birthday?
...
When do we turn on a flashlight?
when it's dark
When do we eat breakfast?
in the morning
When do we take a bath?
when we are dirty
When do we put on a bandaid?
when we're cut or bleeding
When do you go to bed?
at night