Equally, they aren't very practical for walking around a museum or supermarket on a leisure trip.
In 44 years of cycling I’ve never been on a ride that ended up in Museum or Supermarket. Cafe or pub maybe and so far I’ve always managed to walk out of the pub.
no i havent and the probability is unlikely, my bike is well maintained and always carry tools/tubes/spares. In the Highlands it can be tricky getting a phone signal and i dont know many people to call if i needed to. I reckon a passing farmer would let me sling the bike in the back of his pickup but all in all i feel more secure knowing i could walk home. I posted this question [clipless for walking] a while ago and was told even recessed clipless shoes wouldnt be comfortable or start falling to bits after a few miles.