Why are some people's ears pointed?

Some people have sharp ears, while others have different ear shapes. And everyone's ears are different in shape. Just like people's looks. So are the five senses. However, pointed ears are rare, which may be more serious when you are young. Maybe it has something to do with parents' heredity. Just like some people's ears are still that kind of ears. In fact, don't care, as long as it is normal, good health is the most important. The shape of the ear. All kinds. Some people have large earlobes, while others have small earlobes.