how come my dogs tails rarely curl up. its always down. what does that mean?

Husky tails aren't really supposed to curl like an Akita's does for example. My sibe carries his tail correctly and it hardly ever curls except when he's extremely excited or when it's cold and it curls up over his nose and face. Most sibes I meet have too tight of a curl in their tails which is not correct for the breed, but very commonly seen.

Kale only holds his tail up if he is excited or alert. Siberian husky tails should be held in a relaxed position when in repose.

Curled tails re called "snapped" and its out of breed standard even though many huskies have them

A snap tail is when the tail actually bends to one side and curls over. My Balon has a snap tail. It is a indeed considered a fault if you want to show.