There are so many children out there being exploited for views/money/sponsorships- it's really scary. And as others have said, they have no financial protection or legal protection.
I actually think it's totally fair for an adult daughter to state she has never seen any of the money gained from using her/her children in TV shows/on social media. If she was a child actress, she'd have access to that money now, after all.
Some of the videos seem to spill over into child abuse/neglect as well- I follow some (adult) equestrian you tubers, and recently saw a video about a child "influencer" who was filmed having fallen off her pony and broken her arm. Her parents didn't seem to seek timely medical help, and then she was filmed whilst distressed, and this was posted to the internet for all to see- that seems really cruel!
I think because it's all become so normalised, I've also seen parents who've gained a following suddenly realise that actually their children's photos are all over the internet, and they have no control over this.
I do think it needs much tighter regulation. In schools, we try to teach children about internet safety, but it's very hard to do this when they see children (often younger than them) splashed all over social media.
I think a lot of people see it as a way to have an income whilst being a SAHP, but the children need to be much more tightly protected- and if they are the key focus of the content, then they need to be protected financially too.