[a4isms]

Christoper Robin Milne is a famous example of having one's childhood turned into content, although obviously nothing anywhere near as pervasively as happens with attention-starved "influencers" leveraging their children for a dopamine rush:

https://en.wikipedia.org/wiki/Christopher_Robin_Milne

[ThinkingGuy]

Similarly, Dennis Ketcham, son of "Dennis the Menace" author Hank Ketcham:

https://en.wikipedia.org/wiki/Hank_Ketcham#Family