There’s a lot of research starting to come out now on the impact of lockdowns. People who were wavering onto the hard shoulder in 2019 are totally off into the weeds right now.
It affects different people in different ways of course. Young kids are going to be utterly fecked in the head - there’s a crucial window of development (particularly between about 2 and 4) where certain skills must be learned and certain brain development must occur. If it does not, it’s irreparable. Adolescents are going through a similar fragile period of brain development, and there are going to be a lot of young men and women completely unable to cope with adult life in the years to come.
All this was known before the pandemic. It’s mostly old-hat stuff; a lot of the basics were laid down in the 50s and 60s. They knew what lockdowns would do. And they went ahead and did it anyway.