Bars and restaurants will re-open, those are always in high demand, and easy to start.
Hotels have facilities and real estate that are valuable, and should bounce back once people feel comfortable traveling again.
Cruises can die in a fire. They've always been hotbeds of disease, and are now pretty much tainted.
Conferences might switch permanently to a virtual methodology as Apple is doing with WWDC. This could increase the reach of the conference since it's insanely expensive, as well as hard to get tickets.
Taxis (including Uber/Lyft), hair salons, all easy to restart, and demand will bounce back. Chiropractors are frauds, so I don't care if they fail.
A conference means people travelling, hotel rooms, meals in restaurants, good dresses, presents for the family... It may be better for society to make them on-line (it would be better for the environment, for example), but the economic impact would be huge.
Airlines, Bars, Restaurants, Hotels, Cruises, Conferences, Taxies, Hair Salons, Chiropractors, dozens more...
That's 10s of millions of jobs. Livelihoods ruined.
Maybe your job is safe. Mine too. But you have to put yourself in the shoes of someone who is being financially ruined, and whose life expectancy will likely be greatly diminished as a result.
There are major tradeoffs here.