as for the difference between minimums and what is good for your kids, we all can point to many things where the "rules" are far lower a bar than it should be, heck like folks saying you only need to nurse for 6 months because that is what the official statement is in the US, we all know that doing it much longer is way better for our kids and most of us do.
as important a choice that is, this is way way more so.
So yeah someone might live in a state that has stupidly low car seat regulations, it doesn't not make it "right" to follow them, just "technically correct" a huge difference.
So while i will not spend my energy calling anyone a bad parent for just doing the minimum of a badly written law, the name calling does not help the kid.
I will, and repeatedly do, go on recored as pointing out that turning FF based on weight rather than age is in denial of the science of why the law was written.
Also that turning earlier rather that finding a way to make it work is choosing to place convenience over a very real life and limb safety issue.
Until the laws change and I hope in terms of carseats someday they do, parents have a right to do all sorts of dangerous things with their kids including FF way too young, but they do need to own that choice they make and not expect me or anyone to buy the excuses they give themselves.
I have this talk with all my friends heart to heart and many folks i barely know. I have help turned back around a number of kids and helped a handful of others find ways for it to work to keep them RF much longer, like I did with my own horrible problem.
this is such a easy clearly good thing in a world of confusing grey areas of parenting, i make no qualms about being an activist for it.