If you believed that, you’re more gullible than we thought.
Blacksmiths wear protective gloves and aprons to protect themselves from the EXTREME heat that they use when forging. You do not want to grab hot steel with your bare hands. To get even further away from the hot steel, blacksmiths pick up materials with tongs. Aprons, tongues, a blazing fire… is anyone else suddenly in the mood for a cookout?
Also, there is plenty of physical labor that goes into swinging a hammer. Pick up a heavy piece of steel without using your legs and you are looking at a couple weeks of bed rest. Come down on your thumb with that hammer and you may never again find a glove that fits you.