Crazy idea here... all schools go to 100% online instruction until a vaccine is readily available or Covid-19 has all but disappeared on its own.

In the meantime, the government steps forward.

With children grades 8 and under, be willing to pay the lower of the two salaries so one parent can stay home. In a single parent household, pay the salary of the earner. If kids have special needs regardless of age, pay a salary so one parent stays home.