I don't understand why parents of toddlers and young children think it's acceptable to allow their offspring to stand/sit in the food area of a trolly . This is where my food goes, and I really don't want to put my food where dirty little shoes have been, it's disgusting, you wouldn't put your shopping loose on a dirty pavement so why on earth allow shoes in a trolly, what if they've stood in dog poo?. Put your kids in the seat part, or if there to big ,make them walk and control them.