This crap did not go on 30 years ago. I am not totally dumping on daycare. But, when we were kids, we were taught impulse control by our stay at home moms.
Thirty years ago, kids were also disciplined by teachers in schools rather than given chemical lobotomies. I've talked to some teachers who tell me that about 1/4 of the boys in any given middle school class are on Ritalin or worse.
Drugs make these type of people less likely to do these things,
Its as shocking as these type of people are on anti psychotics as it is shocking that people with bone cancer are on strong painkillers