How did women's roles change during world war 1?

first i must say, there isn't much material on the web strictly on childrens roles in WW1.

Some children went to work in ammunition factories, bakeries or grocery stores.

They also worked on the farms that they lived on because their fathers were forced to leave to become soldiers and the farm work became the children's responsibility.

Some of the children only had a father, and when the war broke out the children had to leave everyone and everything they ever knew to go and live with whatever other family members they had, and if they had none they would live with friends or go live in orphanages.

Other children ran away from home and would steal food when and if they could but, others who wouldn't steal would sometimes die of starvation, or depending on the temperature they could freeze to death.