You must be speaking from the perspective of someone who's never lived in a country where suicide bombers take down entire night clubs, hotels, restaurants and cafes... Thank you for suggesting to the IDF the rules of engagement in urban warfare. I'm sure they'll take your experienced and tenured "10 foot" rule into consideration...
Islamic State militants blow up ancient Arch of Triumph in Palmyra (Reuters)
from the article: IDF says Palestinian's death at checkpoint caused by 'misunderstandings'