Feeding larger dogs.

Question
Why is it necessary to have an elevated food and water dish for the larger breed of dogs?

Answer
Hello, Well I've had my labrador retereiver for 3 years she is spayed and doing quite well... she has Never had elavated dishes, my fried has a godlen retereiver/labrador retereiver X she also is spayed 3 years old and Never had elavated dishes. For Very large dogs such as rottys/saint bernards or great danes an elavated dining area would be nicer so the dog doesnt have to stoup so much to get a drink/eat its dinner.