The key takeaway from the 2017 Health of Cash study is that consumers need choice. When 89% of consumers like having the ability to use a variety of payment methods and 82% would miss cash if it went away altogether, it is clear that the war on cash is not in the people's interest. 

While a very small number of niche retailers and restaurants may have a clientele willing to accept cashless as their only option, that is neither the want nor the will of the vast majority of Americans, who simply want to be able to choose, and to have as many choices as possible. - 2017 Health of Cash