I hate scars

I had an accident while washing a thin glass French coffee press, which broke right in my fingers while I was apply dish-soap to it.

The glass cut of a chunk from the side of my index finger. The chunk hang there like a skin flap. I cleansed the wound, pressed hard the chunk back in place and rolled some adhesive band-aid over it. in a couple days the flesh grew back in place, but this will probably leave a mark. I hate scars so much! I already have so many of them! There was some research on minimizing scar formation after injuries and surgeries, but it doesn’t seem to go mainstream yet.
Also, I cannot understand scarring as an art form. I also hate tattoos, tunnels and other cuts. How can anyone willingly scar themselves?