The Romans provided free bread for Roman citizens and also for part of the slave population, depending on the reliability of grain shipments from Egypt and elsewhere.
There are other examples. There were charity houses in Colonial America and in Europe, but the "poor houses" barely gave people anything. The common theme throughout human was that you either worked or were supported by their family. Otherwise, you starved to death.
The slavery system was evil in a myriad of ways (separating family members, denying human dignity, cruel treatment at the hands of some owners, etc.) However, it also provided food, clothing, housing, medical care, etc. to slaves because slaves were valuable, and the owners were financially (and also socially) motivated to take care of them. I know that sounds controversial today, but it is mostly true.
Moreover, American slavery gets all the press, from both the left and the globalists. The truth is that American slaveholders were among the most congenial and caring of the bunch compared to the Muslim slavers, whose cruelty and genocidal tendencies were legendary.
Quite a few minority musicians in the 20th century were slave owners, known as pimps, before they became famous.
They collected the money and took care of their stock. paid rents, bailed them out, dressed them, kicked them out of the shop if they didn’t earn their keep.
And the record labels like Atlantic did it to their stable too.