Ignoring the whole "we should open/we should close" debate (I'm not an expert in economics or virology) it's perfectly possible for the vast majority of people to not want to go to bars/restaurants and to need to chose, as a group instead of individual, to close them to lower spread. I.e. >50% doesn't always have the same outcome as 100%

People do get a choice in the matter but part of that is people get a choice whether they want to act independently or enforce a choice (to some level) as a group.