That's an excellent question. I'm also a parent and can certainly relate to what you're talking about.
I'm not an expert in formula regulation and availability. For many children who can't breastfeed, or whose parents choose not to, formula is a key form of nutrition. For some children, who require specialized formula because of an intolerance to proteins, in particular, access to that can be difficult. I suspect there are similar availability and regulatory issues, but I would have to look into that and get back to you.