If a particularly nasty variant emerges, I'm guessing much of the general public will be wearing masks again (With the exception of those who have a political aversion to wearing them). Guessing the public's response during a low covid phase does not indicate how they will react when things take a turn for the worse.
For the record, here in Chicago, people about 50% of the people I see in stores continue to wear masks. Ditto for the office where I work. At my office, one of the main reasons many still mask is either because they are immunocompromised or have a high-risk family member that they are trying to protect