The only stupid question is the question not asked and u asked so its not stupid...
All strings wear a little..best thing to do is get some Bow String wax..you can find it at any archery shop and mabye even at Wal-Mart.
Just dont wax the string on cams(wheels)
I had an experience where I barely nicked my string with a broadhead...I went out to shoot, i pulled back and right where i bumped the string it featherd apart and looked like someone gut it with scissors didnt get hurt but of course its possible..its a risk, but hey life is a risk. I dont think you have anything to worry about.