So, I have a book series that I'm working on that contains dragons...because I love dragons, mostly. However, instead of imagining them as beasts or animals of any kind, I thought more along the lines of a soul carrying race. I've been a very big fan of dragons being a shape shifting species for a long time. I'm going to lay out some details to see if you guys think it could work, or if it's just a little too crazy.
Abilities~Dragons can shift between a human form as well as a dragon form.
~In either form they are "immortal." They can still be killed by typical means
but will not die of old age. Some times, when a dragon hits a specific point
in their life they will "pass on." No one is sure how this occurs as afterwards
the body is found to be in good health.
~Dragon form:
-Cannot use magic in this form.
-Some dragons can breath fire, some cannot. A few groups believe this to
be a divine gift.
-Dragons cannot breed or give birth in this form. Once pregnant the female
must keep in human form.
-Flight is possible in most winged species but also possible in those who
do not have wings. This is also believed to be a divine gift.
~Human form:
-They may use magic of any sort, as long as they are learned or born with
the ability.
-Breeding and birthing is possible in this form.
Physical Attributes~Humans and dragons can come in many different shapes in size. There is
some connections to specific features that carry over in certain ways.
-Hair color is decided by scale color. Regardless of dullness, brightness.
(IE: Pink, green, blue, silver, all colors!)
-Eye color carries over the same. Also comes in a large variety.
-Height and weight is a bit subjective. Some dragons are as big as small
mountains and others that are about average human size. The largest
dragons
might be about 8 feet tall while the smallest could hit 4 feet
in height. Everyone else would hit some where in the middle so the sizes
wouldn't be of impossible smallness or largeness for a human.
~Dragons specific attributes.
-There aren't many! Everything under the sun is a possibility for a dragon.
They can be born with or without wings. With horns, fins, scales, fur, and
other such things can adorn their body.
-All dragons are born with fore-feet very similar to human hands including
opposable thumbs and the same range of motion in the wrist.
Culture~As dragons can be human they fall within the same cultures as humans and
come from many different background.
~An unspoken rule that has prevailed for as long as dragons have been living
is not breeding with anyone but another dragon. This is not a law of any
sorts but more of an aversion. This may have to do with their immortality as
no species is immortal but the dragons.
Any feedback is of course appreciated!

They are kind of the center of the world of created so I'd like to work out any kinks if possible.