It only takes a cursory examination of a welding torch to understand there are some real safety concerns with this craft. Welding is a 100-plus-year-old practice that's still a fundamental component of machine work and industry today. Proficient welders are becoming harder and harder to find, which is another excellent reason to learn the craft. It's also a handy thing to know how to do.
It is estimated that 5 to 10 arc flash incidents occur in electrical equipment everyday in the United States. These events have the potential to cause serious injuries and even death due to burns and other trauma.