ass3r7

Wait until the first flu season in Chicago with the bag tax it will be this year.

The politicians will have dead babies and elderly on their hands. It will be obvious in 5 years when some researchers realize that suburbs nearby don't have the bag ban vs other idential demographically areas within city limits do but somehow flu rates are statistically significantly higher and since they won't be able to find any other explanatory variable. ... oh shit.

I just watch people for 30 mins and saw some crazy ass shit so people could save themselves 7c.

No your cloth bags are not the solution. It's a trade off between immediate needs and future costs. I don't dispute plastic bags have many negative externalities however they are profoundly immediately useful to humans. There are massive unintended consequences whenever you impose a designed objective function on reality as a planner.

In regards to the questionable surfaces I don't dispute that either but it is irrelevant.

what the relevant issue is measuring the baseline transmission effectiveness from a outbreak source prior to the behavior change vs after.

It is a physical fact that a shopper, for example a horder, who can provide source bacterial matter has been increased in likelihood to bring a bag with such matter and then when checking out has an exponential increase in contact with others. There are documented cases of people using hospital bags for their groceries.