But what about if the same aluminium tube was to overshoot the runway on landing, or a rejected take-off went wrong. Not all accidents result in a speed change from 500mph to zero in a few feet. There have been plenty of survivable accidents where fire/debris would mean people wearing inappropriate clothing (including footwear) will be more seriously injured or unable to assist others as effectively as they could if they were wearing suitable attire. Personally, my enclosed footwear remains on my feet during take-off and landing phases of flight, just in case I have to walk over burning/hot/sharp objects to save myself or someone else if the unthinkable should happen.
I use the same theory when driving in a car. I wear shoes just in case I am involved in, or come across, an accident that results in broken glass and I need to help myself or someone else. I guess its the boy scout that still comes out in me after all these years.
I only wear thongs at the beach or in public shower facilities. I understand that many people do like to wear them. Its just my preference and personal choice not to.
I also rarely travel in jeans. I find them too heavy and inflexible for sitting/sleeping for long periods. I find dress trousers (such as Dockers) to be more comfortable for long periods of confinement than jeans.
And when travelling, especially international travel, I prefer to wear a shirt with a pocket as I like to keep my boarding pass, passport, arrivals/departure paperwork and a pen within easy reach. So this normally means a button shirt with a collar rather than a T-Shirt or even a polo shirt.