Having good education resources doesn't make up for living in a food desert, having a parent that's working two or three jobs to make rent and doesn't have time to cook, having neglectful or abusive parents, or having parents that don't know that these resources exist and even if they do can't access or understand them.
I agree that these resources exist, but actually being able to practically implement them is different than them existing.
The typical person on HN is probably educated enough and is in a position in life where these things aren't problems as adults, but that's not going to help a kid that is still living with parents or in a situation that they do not control.
The Government has excellent resources on meal planning and budgeting on SNAP:
https://snaped.fns.usda.gov/nutrition-education/nutrition-ed...
https://snaped.fns.usda.gov/nutrition-education/nutrition-ed...