The account started posting when the kid was 15 months old.
I doubt that the kids have been posting anything including now.
It is clear that you have used this account to get additional rewards.
By the way, I would not recommend publishing photos of your little child on social media, including for monetisation purposes. I would recommend keeping such photos in private family albums for the sake of the child.
You can doubt it all you want. My kid impresses his classmates with his reading and writing abilities. And yes, I am familiar with the various concerns people have regarding kids' faces on social media. It's a complex enough issue that I don't have a hard and fast rule about it and we're still discussing it with each other and him.
And yes, I already confirmed that I was posting for him when he was little. And yes, I still help him post. Not sure why that's a problem.
If your primary issue is that his posts are too short, could the solution that I proposed work for you? That until he's old enough that his posts are a little more in-depth, we only post once a day at most, and edit the post to add new stuff if he's got more to add later?
Edited to add: and how do you feel about if we posted pictures of his artwork using this account?