A friend had commented on a post that cloth bags were available for much cheaper elsewhere. Then I saw that the comment was deleted. I am publicly posting my only considered response for this.
"This is what it costs us. To procure good quality gada from Madurai and Kalamkari cloth from Chennai, and for the four women to get a basic decent wage to sustain their families. Plain bags costed at 35/-, and with kalamkari strips or embroidary at 50/-. These are sturdy bags which can carry 5kg to 7kg. I think the middle class and upper middle class can pay this cost. They can also buy in bulk, and sell subsidized to whichever shops they wish to. They can persuade their upper end shops to do the same.