To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
At the age of 5 or so, the child is curious about everything. That is the time it has to be exposed to treasures like this. My grandchild for whom this was a Birthday Gift, has not put it down at all. I recommend it to all kids!