I've said it before and I'll say it again, your hands are the best eating utensil in town.
Each of your five fingers contains one of the five elements-earth, water, fire, air and ether. By using your five fingers to eat your food imbibes all elements making it a more satisfying and rounded meal.
So forget what your mum said when you were growing up, get your hands stuck into it.
But she was right to tell you not to play with your food. You should eat when you are eating, not read, talk, play games, watch tv, walk...just eat. Eat and enjoy.