The barbershops here are by appointment only, and appear to be operating at a much slower rate. I imagine the salons and nail places are the same. Most malls have opened, but as noted, hardly anyone is shopping there. You can "reopen" and find many many people don't play along.
Someone might flip a switch and say "OK, everything is back to normal, everything" and you'd find initially maybe a quarter of the missing activity perked up, and that would diminish if numbers started looking bad. Initially it would grow of course.
Folks are scared, many folks. The cruise lines are shut down, I see air travel is 10% normal if that, hotels are shut down. Even restaurants that are open are barely seeing any diners. Legal reopening doesn't mean throwing a switch.