I also do not understand the fuss about other people's food choices
I don't care about the OP's food choices. I'm not bothered about what she feeds her children, as long as they are fed, and happy, which I'm sure they are.
What troubles me, is the apparent inability of many people, including those with a particular interest in dietary matters, to distinguish between "gluten" and "wheat", and the potential impact of this on my son's ability to purchase and consume food without poisoning himself.
And the OP claiming that she is "raising her children gluten free", which she isn't, at all - and making a smug, pseudohealthy deal of it to boot - is contributing to his potential difficulties in this area.
My son isn't allergic or intolerant to wheat. Strip the gluten out of it, and he can eat it with no problems whatsoever. "Cutting out bread, pasta, cakes and biscuits" isn't "going gluten free". Having an irrational fear of "long named ingredients" in food isn't "going gluten free" either.
"Going gluten free" is what my son has to do, completely and for life, in order to avoid extreme suffering in the short term, and a vastly reduced life expectancy thereafter. "Bringing him up gluten free" is, therefore, what his father and I are doing at the moment. Frankly, the OP could have it, if she liked. But I suspect, given the reality, she'd turn it down.
So, in the meantime, I would really appreciate her picking her words with more care.