Is there a point at which one can start helping orphans and other disadvantaged children?

There is no specific point. Anytime your mind starts thinking about it, it means it is bothering you and just as we drink water when thirst bothers us, we help when the need for help by others begins to bother us. So the sooner the better.

This is the right point.

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.