Think of it like this. For 100s of years men have shaves with these.
That means that the most simple minded, careless, unintelligent among them penned one of these, put them to their face and shaved.
And we know even the dumb ones made it through cause we still got dumb people so they stayed in the gene pool.....
If you believe in that sort of thing
You don't have to be afraid of it.
If you're smarter than the average rock you can learn to shave with a straight razor