Would you support a ban on Styrofoam cups in the city or town that you live?

Styrofoam is a cheap material. For restaurants, the cost of a Styrofoam cup is very low. If it is banned, it is necessary to raise the cost of the Styrofoam so that the profit would be decreased.
This is the problem of recycling policy. Why should we blame Styrofoam?
If a decree is issued, all Styrofoam must be recycled, thus the problem of environmental pollution can be solved.
What's more, Styrofoam recycling is also very easy. Recyclers can also earn money from it. Why do they choose to issue a Styrofoam ban?