The correct answer to this open question is the following.
The impact World War I had on the women who were left home and the men who were in the trenches was devastating in different ways.
First, if men were drafted, they had to leave home to enlist in the military. That was the first shock. Most of them knew they were going to die on the battlefield.
That impacted the family in that women, mothers, had to be in charge of the house, raise children, get a job to feed the family members, knowing that they could never see again their husbands. That should have been a traumatic experience.
Children! How a mother could explain to children that their dad was not going to get back home. Too much pain and suffereing.