There seems to be conflicting information as to whether all shoes need to removed in an aircraft emergency landing or just high-heeled shoes.
On the safety cards behind the seats, you only see pictures of people removing high-heeled shoes (to protect the chute). However, I have heard accounts that everybody has to take their shoes off. On the flight to Japan last week, there was an animated film presenting the saftey instructions. People who had been flat shoes had taken them off in that.
I suppose in an emergency, the cabin crew have nopt got time to check everybody's shoes and find it easier just to tell everybody to take their shoes off.
Now removing shoes at home might not be a life or death issue like in an aircraft emergency, but high heels and also flat shoes can leave scratches and marks on wood and laminate flooring.