I feel like this is a problem the non-profits should tackle. The mother in the article does this, it seems she really is trying to work and not depend on charity/welfare. However, there is some financial literacy / access to capital / cashflow planning type issue going on that prevents her from planning properly (buying in bulk ahead of time). If the non-profit simply offered her affordable diapers (I imagine removing the retail markup alone saves a huge amount), a line of credit or something and helped her plan her diaper supply needs it seems like it could be a helpful service (maybe they do that, article only made it sound like they give away diapers to the poor)

0.25 - 0.30 is not a bulk price. You can buy a pack of 29 on amazon all in for 0.27 per diaper.

Buying in bulk (200 pack or so) easily gets you at 0.16/diaper or below. And even lower if you look out for deals.

And assuming you need them now and don't have money for bulk buy, a 27 pack at walmart for off-brand is $5.41 at the moment. ( ~0.20/unit )

Not everyone exhibits basic competency and planning ability, but that doesn't magically make other people responsible for setting up surrogates for them.