Thanks to gerrymandering and the overrepresentation of rural areas in legislatures and Congress, unvaccinated America exerts disproportionate political power. Vaccinated America, however, has more market power. And it’s time for individual consumers to start using it.

Ordering an Uber or a Lyft? Ask the driver whether he is vaccinated. If not, refuse the ride. If the company tries to charge you for the refusal, complain. Pretty soon, Uber and Lyft will require that their drivers be vaccinated.

Contemplating a holiday? Cruises departing from Florida are forbidden to require proof of vaccination from passengers. Cruises departing from almost all other ports do require it. Plan accordingly.

Hundreds of bars and restaurants in New York, San Francisco, and other cities require proof of vaccination from their patrons. When making your next reservation, ask whether that establishment does too.