Because the change in time makes it unsafe for small children boarding school buses and walking to school in the dark. It confuses the biological clock of the human body as well as disrupting eating and resting patterns.
We now have little children getting on the bus and walking to bus stops for school in the dark and going to bed in the daylight. In addition to this it disrupts work patterns of the rural community, as well as those involved in occupations requiring them to work day break to sunset. Change it back and leave it alone. Thank you.