It looks like a smart idea, but I call this another dumb idea 101.
yes, if you use it when you need to go to a hospital, but if you are in a location where you cannot access a hospital this would be a great idea
That looks like a good idea to me and the scar would be smaller .
It's good for an emergency.
If I had a cut the size in that picture or smaller, I would use it instead of going to a hospital.
Just need to know how to take care of the wound and keep it clean.
depends for what and how severe, if you rout hiking, or camping this would be very handy, if you need stitches and can reach a hospital, that is the best choice imo