Good feedback! Will work on updating the website to show that. Were you wanting to just see the specific interaction of how it works?

You can see a bunch of videos users have uploaded here: https://www.reviews.io/company-reviews/store/ello

(And can also see reviews if you click on product reviews.)

A "real" demo video was exactly what I was looking for as well. Since the concept is so novel, seeing the product in action would increase my trust, and willingness to buy significantly. My skeptical side made me wonder if demos with real children had been left out on purpose so it doesn't make the product look bad - probably not what you were going for.