There are numerous effects DST might have on people. Having to turn the clock is indeed the smallest of the concerns. Parents of preschool or school children k

There are numerous effects DST might have on people. Having to turn the clock is indeed the smallest of the concerns. Parents of preschool or school children know the impact. Somehow for some of the kids the "biological clock" is stronger than for an adult. So twice a year you are fighting against that.