Second wave will come no matter what they do.
And third and fourth, ad nauseum.
People will be forced to change life styles and some are good and some are not so good.
People will be visiting hospitals less
People will avoid crowded shopping malls, etc
People will rather stay home than go to unnecessary entertainment
Less barber visits
Not so good:
It can bring down traditional culture of theater and music
Big cities have subways. What are they going to do, especially in the summer? Run them with windows wide open (which they do in Tokyo now) without airconditioning?
—Forgot to mention, people will be eating out a lot less, which may be good and not so good, depending on your point of view.