How to choose toys for your children scientifically

First of all, we need to know what toys are for? Why do we buy it? Why do children play? This truth is very deep, but it can also be very shallow. We think about it, why do children play? There is a value in nature: “Everything that is not done for survival is to play rogues”, and play must be for the children to survive better. It’s easy to understand. Everyone thinks about lions, tigers, kittens, sand puppies, they also play, they play differently…