I am a 53 year old woman with a very small frame. I am 5'7". One look at me and you can tell I weigh less than 115 lbs.
I used to sit in the exit row seats a lot until I became ill and knew I would never be able to handle one of those doors. I declined the exit row from then on. I could probably have gotten away with sitting in them, but just the thought of people not being able to escape because of me, caused me to think twice.
I wonder how many people who really are not capable are sitting in exit rows do anyway. No one ever SERIOUSLY questioned me when I did sit in them. The FA would just quickly ask about being capable and be on her/his way. It is quite apparent that I couldn't handle a 66lb door. Would you or anyone you know sit in an exit row for the extra room even though you/they are really not able? This is the day and age of it's about me, so I am just wondering about how much conscience may play a part in a person's decision.