Why do guys grow their pinky nail long?

Some people grow the nails of their pinkie finger long to make it easier for them to pick their ears. This is common among lower social classes in some countries such as China.

According to the practice of palmistry, a person is considered more fortunate if his pinkie finger is longer than the distal knuckle on his ring finger. Some people might grow the nail of their pinkie finger to get better palmistry readings.

In some areas of the world growing the pinkie fingernail is done to show that the person isn't doing manual labor. It's thus a method of showing off, for a person tries to convey the message that he is of a relatively higher class.

According to a Quora thread, some people grow their pinkie nail in order to be able to reach certain areas of their body easily such as their noses.

Some people might grow their pinkie finger nail to be able to handle drugs, such as cocaine, easily. Some people, however, consider this reason a myth.

Some people grow the pinkie fingernail to use it as a tool to do various things and to handle various objects.

Because the pinkie finger is the least used finger, it's considered the best candidate for growing nails as it would be hard to use the hand if another finger had long nails.

Because the pinkie finger is not used often, some people might grow its nail to make it more useful.