Never be ashamed of the scars that life has left you with.
A scar means the hurt is over and the wound is closed.
You endured the pain, but God has healed you.
My open heart surgery scar still shows through my gray chest hair even after 6 years - I don't think about it. But I do recall my wife saying something about it a few days ago when I was about with my shirt off.
Of course there are mental as well as physical scars. Both must be accepted and in a way that does not decrease out quality of life. I am grateful my scars are so minor they are easy to wear and live with.
You need a hairy chest :) It helps to hide things.
I think your statement is very valid and too many people worry about scars. Well said :) God bless you