Could we verify this against data? Surely if people are trying way worse post covid, that would show up compared to pre covid data by way of accident, fatality, and ticket issuances, e.g.?
To the OP, I'm not sure I buy into it being tied to THC which seems to be the implication. Canada isn't seeing this trend, afaik.
Those who are autopsied due to traffic deaths clearly show a massive amount of THC impairment.
But the data here also show that it's a consistent level before and after legalization of cannabis in Ohio. So legalization of cannabis in Ohio did not cause a big increase in impairment-levels of THC in those who died in traffic.