"Do not want to work", or, have kids at home they now must home school? Maybe went to grab up an elderly family member of their own to care for in their own homes. Most people have family that comes first, before work. Some people are actually sick, too, and should not be visiting homes of others.
I don't think it's ok to decide what is in someone else's heart or head. You can't just declare motivations for entire groups of people. How could you actually Know?? You can't state fact that "Many do not want to work now". That's not fact, it's opinion. Shortage is fact. Speculating on the cause of shortage is speculation.