Yeah but it's more about "time" and money than availability.
People don't have time to cook a proper meal due to work, eating healthy is also WAY more expensive than just eating whatever fills you the most.
Translated to kids, well there's just enough time to get them dressed and run off to school, hope they pick what's good for them and not something that they like with whatever little money they are given.

That aside, I could somewhat trust meals on private schools to be decent or to not get the kids sick... Not as much, at least. Now public schools... I fear for the poor kids as I expect these meals to become someone's nepotism and not care at all about it being healthy, undercooked or expired.

Speaking from a third-world country, there are 2 main weaknesses the fediverse has for us:

• selfhosting is not easy or cheap for us, so we can only use what it's already there... And it's basically all in english, so most people are out.
• meta has everyone grabbed by the balls and people are happy like that (for some reason), anything new or different is met with endless excuses.

There used to be a mexican instance called Mujico, but they were forced to use a whitelist by constant troll attacks... But they also federated with grad so I can't feel bad about it. I don't know if it still exists but the last time I checked it had zero activity.