Scissors, especially, cause left-handed people some trouble. Most scissors are made for right-handed people. Because they are designed this way, if a person tries to cut something while holding the scissors in their left hand, they cannot see the edge they are cutting. The way the cutting action works is also designed for right-handers, and left-handed people tend to force the blades open instead of cutting cleanly. Even though some scissors say that they can be used by both left and right-handed people, these scissors only have their handles changed. They are still right-handed scissors and still cause the same issues.