How would you survive if evacuated from an aircraft at a location thousands of miles from home, with no cash, no wallet, no credit cards, no passport, no driver license, no car keys, no house keys, no flight tickets, no hotel confirmation, no essential medication, no inhaler, etc?
I consider that every flight puts me in a survival situation. Everything above, except hotel confirmations, including 24 hours worth of essential medications, is on my person. A list of those essential meds is in each of two wallets which stay zipped in my pockets.
Wearing high-heeled shoes, taking wallets and passports out of pockets is simply stupid.
BE PREPARED!