Why not? California been trying to implement income based pricing for privately operated utilities like PG&E for years. It is already partially implemented for electricity.
It seems to me like government programs is a poor delineation, as government can pass a law to extend its own scope.
TANF and SNAP are very different than what I am discussing. That are wealth transfers from general taxes to those in need. Very different than wanking into a public grocery store and seeing different prices based on your income.
Where I am, most grocery stores have two prices for items on the shelves. One "regular" price, and a second, lower price that only applies if one is paying with SNAP.
That taken to an extreme, this idea is the same as "from everyone according to their ability, to everyone according to their needs". Which sounds great, until you realize that this incentivizes needs and disincentivizes abilities.
It seems to me like government programs is a poor delineation, as government can pass a law to extend its own scope.
Why not groceries or clothes?