Yep, it's not the inconvenience of hot brass on skin contact, it's that most people aren't trained to not flinch when it happens.
I have a bit of a soldering background as well as some metallurgy. What I learned from it was if I ever get metal splash on me, to stay calm regardless of the pain, and perform immediate first aid techniques, then get my butt to the in-plant clinic or to an ER (if severe). I really think more poeple need to learn when pain happens to stay calm...I wish there was a way to teach this to all people.
Provided I also wear prescription safety glasses wtih removable side-shields (and put the shields on for range use), so all that ever happens is hot brass gets on my eyebrow or the bridge of my nose. In which case, I just take my weak hand and flick the brass off my face.
Many people need to get proper range gear, it would make the hat obsolete for the most part. Most ranges don't even know about the side-shields thing, which is sad...there's moldable generic side-shields that can be had for $10 that can be made to fit almost any frame.