I don't wear them for anything but welding (when I DID welding), but I still have them.
I don't like wearing Cowboy boots, or really any boots...generally they are too heavy, (tho' my instep is fine with boots.)
If I start welding again (actually it would be brazing) I'll probably wear them.
Guy in class had his denim shirt catch fire.
He didn't even notice that the sparks were hitting it, and then it just started burning.