If the community wouldn’t spend money at the stores until the rule changed, why would the stores agree to change the rule?)

because the stores need money or they will have to close

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.