The Echo has amazing potential for toys. There's already a large selection of "speaking" toys for boys and girls of all ages, from dolls to board games. All would profit from an Alexa-like technology level. But unless you want your children to order a few pounds of ice cream from Amazon Fresh, you would have to remove the Amazon store part from the kid's Echo (or have much better voice recognition).

It would be beneficial for Amazon in the long run (making people more at ease with voice assistants), but I doubt that this would be the reason for Amazon to buy ToysRUs