Why did the first labor reforms deal with children

Because Children were being put to work, not getting paid, he dangerous conditions. Children were getting hurt while working.

well first we can compare on what the slave masters ate and what the slaves ate well the masters ate fancy great food like chicken rice mash potatose and stuff like that and slaves ate well food that your not suppost to eat like the weird parts of turkey and chicken and slaves master chilled beat and eat and slaves work get beat and get little of sleep there you go

answer:

it caused mass african migration, african populations to grow, african empires to topple, and racism against slaves to emerge.