Only you know your kid. If you think, he/she will follow your rules and not sneak out or have friends over, then a child as young as 13 would be ok to stay home alone at night while you work. Personally, the only way I'd leave my teen home alone before age 18 is if I had to have the job to provide for the family.
It's definitely not an ideal situation.
Depends on the teenager. Whenever my parents left me home alone I threw a party. If your kids are more trustworthy then I would think sometime after 16... I think the legal age is 16 anyway.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.