Because surely it's unhygienic and you don't want your innocent child's mouth to be dirtied by your foot germs? Even if they're washed? Even if they're ex pop star now famous for nothing z-lister toes? [[http://uk.omg.yahoo.com/photos/cute-celebrity-kids-slideshow/cute-celebrity-kids-michelle-heaton-s-adorable-daughter-faith-has-a-munch-on-her-mummy-s-toe-photo-2113557087.html why? Why? Why?]]