I was recently sent a fantastic book which gently introduces this concept to young children in a not-at-all scary way.
Meet Toby the Teddy...
Toby the Teddy takes us on a journey through the adventures of his daily life, and several things go wrong along the way. He drops his ice cream, it starts to rain, he grazes his knee... and he wonders "Is this an emergency?". No, but he figures out what he needs to do to fix the problem. (I was impressed that Miss M said she had already read this book at child care before).
As I was reading the book, I wondered where it was going to lead, and was interested to see how the situations gradually increased in their level of emergency. The authors have thought really carefully about real life situations that children are most likely to find themselves in (e.g. asthma, allergic reactions).
After we read this book together, we spent some time teaching Miss M our address and wrote it on the special magnet that came with the book. This lead to a discussion about other emergency services and people who are in our community to help us.
Naturally young children will be eager to 'role play' these special people and Twinkl has some great resource to get them started (e.g. Fire station role play).
Kids will love pretending to be fire fighters when they're enjoying water play outside, you could set up a hospital with their teddies and play doctors and nurses, or pretend to be police officers when they are playing with toy cars.
These Songs and rhymes I found look great too...
In the mean time, stay safe and pray that your child doesn't ever have to make that call - but consider using this book as a starting point to introduce them to this tricky concept. Ideal for schools, kindies, child care centres or home.