My mom bought a toy phone and played 911 with us a couple of times a week when I was 6 and my sister was 5. We'd wait in another room while she set up an "emergency", then she'd call for us and we'd come in, identify the situation, go to the phone and call 911, and roleplay the call with her as the operator.
Some "emergencies" I remember:
Barbie fell off her bicycle and is not moving
A fire in the kitchen trash can
Tyrannosaurus in the bath tub with its head under water
Tyrannosaurus hurt its foot and can't walk
Barbie got stung by a bee and can't breathe
Barbie is sleeping but we can't wake her up
Tyrannosaurus got hit by a car
We'd see the situation, identify that we couldn't solve it ourselves, rush to the toy phone and call 911 (actually 000 because we're not in the US), say our full names and address that we had memorised, where we were pretending the emergency happened (school, grandparents' house, the park) and why we needed help.
As a result, when my dad fell off a ladder and cut open his leg to the bone, my 8-year-old sister could call for an ambulance and probably saved his life.
Similarly, my nibbling is 5 and we're playing shopping for groceries. When I pick them up from kindergarten, I'll ask them what they want for dinner. Then we'll go to the grocery store and they'll get a kiddie cart and go around picking out what we need (and one treat for dessert, this is THE MOST serious decision), and at home we cook together.
The important part is giving THEM the choice of what they'll want to eat, letting them take ownership of their choice, and then assisting them in succeeding with their decision. Teaching agency to children is one of the most important tasks we have.