Why are Plastic Shopping Bags still being Manufactured

HARRISBURG - An area lawmaker wants Pennsylvania shoppers to BYOB (bring your own bag) or pay a fee. Sen. Daylin Leach (D., Montgomery) has introduced a bill aimed at reducing the volume of plastic bags in the trash by imposing a two-cent fee on each new bag used by shoppers.
Leach said his bill - like those already enacted in Seattle, Los Angeles, and Washington - would encourage customers to shop with reusable bags while reducing landfill waste.
When I first read this I thought - That's a good Idea- Second thought wait a minute why not stop manufacturing these plastic bags, but of course that would affect the bottom line of the plastic's industry.
So let's keep manufacturing these bags which are polluting the world and charge our citizens. This way big business keeps their profit. The state gains revenue and as usual American citizens are left holding the bag