Why tip someone for a job I'm capable of doing myself? I can serve food, I can drive a taxi, I can and do cut my own hair. I did, however, tip my urologist.
Congratulations on the launching to real users. I know how challenging that is and especially when your users are kids, I can imagine the pressure is much higher.
One piece of feedback on your use of the term AI. While adding the term "AI" to the description of /most/ products seems to increase their appeal, in products that are for children, to me, it reads like this product will be buggy at best and ends up decreasing the appeal. Words like researched, "smart", advanced, cutting-edge etc may be better suited. This is just one person's reaction, of course. I could be wrong--perhaps to non-engineers, reading "AI" on kids' products now has a more positive reaction.
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.