Fashion design is the art of application of design and aesthetics.  Something that's important to many people.
Oh yes, it's very important. I enjoy the work product, but not the process.
Yes, it's a tough process.  The designers must conduct research on fashion trends and interpret them.
I would imagine. Do they have to sew at all?
Some do sew, all while attempting to design clothes which are functional and pleasing to the eye.
Sometimes their designs come off avant-garde, but the stuff in the stores is usually wearable.
Right!  At least they try to consider who is likely to wear the garment and the situations it will be worn.