Because it isn't just happening in the construction industry. There are restaurants in my town offering a $3000 bonus if servers and cooks commit to 4 months of work. They literally cannot open entire sections of their restaurant because they cannot find enough people willing to work. Same thing with the trucking industry, there was a driver shortage before the pandemic, and it has only gotten worse. People are simply not willing to work so long as they are being paid to sit at home.

Interesting that it is so widespread- from my perspective it's great that there people now have leverage in negotiating their wage