If it is just for the ability to sing then yes some people are naturally gifted when it comes to singing. But WHO CARES? Just sing!
Don't worry if your good or bad your not performing for a bunch of people youare singing to enjoy yourself! So go all out! -woot!
Yes I think it is because most of my friends have really nice voices and they don't have any training at all. If you want your voice to improve you could always try vocal exercises (easy to find on youtube or google) and practice a lot. But no, you do not need any professional voice lessons to be good.
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.