BPE, I see your point, however I would like to amplify that wearing meltable clothing (such as Nylon and Polyester) is an unnecessary risk that might mean your difference between life and death.
The same goes for people wearing Nomex Flightsuits OVER Nylon/Polyester clothing - it might keep them clean, but the heat will still melt those fashionable items into your skin for life.
I recently asked a pilot why her leather flying gloves were in her flightsuit pocket whilst she flew a warbird. She said she only wore them at airshows! I pointed out that they might be protective on every flight.