The issue is barbers are not trained to use a straight type blade so they learn on the job with no direction and YOU are the crash test dummy.

Back in the day barbers trained long and hard to use a straight. if you went to such a person for a shave you would have the closest and most comfortable shave in you life. if a barbers drew blood the customer would have laid him out on the floor. Something like that would just be unthinkable back then.

Amazing what we learn to accept these days isn't it?