I was kind of just keeping tabs on things to make sure there wasn't going to be any really major damage/fallout
I think this is good parenting. Low-risk environments where they can play and test themselves. Small hurts, big gains.
I have heard the same about the diets. There are also things like microplastics and other chemicals that likely affect us in unknown ways also. However, that is only part of the excuse, right?
That was exactly the idea.
And yeh the comment about the diets wasn't supposed to excuse the other stuff, I just noted it because you were talking about diets in the unlikely event you hadn't already read/heard about it :)