Question Author
I just wanted to say that the Fire Kid's Edition is a resounding success without adding the Google Play Store. She finds it easy to hold, easy to use and loves the colour (purple, if you are wondering).
I don't need to worry about her dropping it, or throwing it. She has taken it like a duck to water and my iPad will live to see another day.
This is not a recommendation for the Fire in itself, it certainly won't suit everyone but my aged relative only uses a tablet to play a few casual games, look at her memory photo albums and videos and look at the weather forecast (she is obsessed with the weather). It is perfect for her needs.
Thanks all