Maintaining government benefits quickly becomes a full time job because of arcane requirements written by uncaring people. Those in poverty might find themselves disincentivized from seeking higher paying work due to the “welfare cliff” where once the make over X amount, benefits start to go away. In some cases, if they suddenly make nothing (as if they’ve just lost a job or had hours cut), healthcare benefits are yanked away just when they need it most.
It’s very easy to see this as a moral failing, but if you’ve not lived through this situation, you cannot possibly understand the toll that poverty takes on you both physically and mentally. The truth, like with most things, is more complicated.
IF their parents filed a bunch of paperwork--which presupposes the time, literacy and desire to do so. Children don't get to choose their parents.
This is one of the reasons why making school lunches a standard part of school (they're not "free" as they're just part of the budget) is so important.
People dunk on the public schools, but, if there was anything that the webcam schooling of Covid lockdowns showed us, it's that the home lives of a LOT of children in lower socioeconomic areas are really terrible (and also how bad the home lives of a lot of children who nominally aren't in lower socioeconomic areas--but that's a totally different discussion). The fact that public schools tended to provide an oasis in the middle of that chaos became terribly apparent.
None of which you can take for granted in the lower socioeconomic areas.