Do you make all your passengers wear Nomex undergarments?

No I don't. My risk is greater than theirs because I expose myself to that
small chance many more times than they do. If they did make such a decision
they too would significantly lower their chances of burning in such an
accident. The line has to be drawn somewhere - for me I choose to protect
myself as best I can - in everything I do in aviation.

I do however make them wear life jackets when flying single-engine over
water - I do carry a fire extinguisher - I do carry an aviation survival
kit. I do a lot of other things too - many of which also get me 'stick' from
others about my attitude to safety.

I have many conversations about this (which fall mostly on deaf ears) - the
inherent problem I find is that the group who's experience would be the most
compelling when it comes to people taking a more serious approach to
aviation safety are very quiet on the topic - because they're all dead. All
the rest seem to think (a) "It won't happen to me" and (b) if it did then
"I'd be able to handle it - it's the other pilots you need to worry about".

.... and as a result they continue to have accidents and get injured.