All together, America’s public schools have lost at least 1.2 million students since 2020, according to a recently published national survey. State enrollment figures show no sign of a rebound to the previous national levels any time soon.

A broad decline was already underway in the nation’s public school system as rates of birth and immigration have fallen, particularly in cities. But the coronavirus crisis supercharged that drop in ways that experts say will not easily be reversed.

No overriding explanation has emerged yet for the widespread drop-off. But experts point to two potential causes: Some parents became so fed up with remote instruction or mask mandates that they started home-schooling their children or sending them to private or parochial schools that largely remained open during the pandemic. And other families were thrown into such turmoil by pandemic-related job losses, homelessness and school closures that their children simply dropped out…

In large urban districts, the drop-off has been particularly acute. The Los Angeles Unified School District’s noncharter schools lost some 43,000 students over the past two school years. Enrollment in the Chicago schools has dropped by about 25,000 in that time frame.