Ya, to corroborate that I know road rage deaths increased in certain areas. There is evidence that people started speeding more too. Since people started speeding during 2020 (deaths per mile went up as total miles traveled went down) my thought was that maybe people became accustomed to not being policed and just started driving much more dangerously and then had a hard time adjusting back. I don't know. Reduced policing could also explain it, or maybe just a general decline in socialization. No one will look into it probably.
