The elephant in the room on how they've positioned it is on the word 'natural.' And I think that what they're saying is if there's only one way to define family, that excludes other types of families.
Banishing other people's voices from our heads isn't easy, especially when they echo our own insecurities. Lack of self-trust amplifies unwelcome judgments from others.
When I was a kid, I ran around unattended all the time. On any given day, after school and on the weekends, I could be at a creek, a friend's house, the mall, a movie theater, a construction site, or even home in my room. And my parents had no idea. I remember being 10, running around on the construction equipment from the housing development three neighborhoods over at 9 or 10 p.m. My parents were cool with it.