Are you sure it's not just the delivery? If I want a storybook I don't want to wait 2 business days for it to print, ship, and deliver, and I'm sure most parents/guardians don't think that far ahead. The physical delivery factor turns your product into a mental burden.
If you (or Disney or Hasbro) shipped ebooks that unfolded when you tell it a prompt (in the format of "bibbidi bobbity boop tell me a story about an elephant"), then I'm sure it would fly off the shelves this Christmas. It doesn't even have to be expensive hardware; I'm sure you can build it with a Pi Zero with 2 cheap screens paired to an app on the parent's phone. But perhaps that's not the business you had in mind.
If you (or Disney or Hasbro) shipped ebooks that unfolded when you tell it a prompt (in the format of "bibbidi bobbity boop tell me a story about an elephant"), then I'm sure it would fly off the shelves this Christmas. It doesn't even have to be expensive hardware; I'm sure you can build it with a Pi Zero with 2 cheap screens paired to an app on the parent's phone. But perhaps that's not the business you had in mind.