There seems to be a desire to have an "elevated" or almost mystical vague idea of what art is, that it is special and rare, when the fact is art is common. People get confused because they think art has to be in some way "good" or "inspired" or "original" or "evocative" - when those are all descriptors that either may or may not apply to a particular piece of art. Some are is great, some art is total crap. Some art is well done, some is poorly executed. People don't get confused about music - they feel free to say "that music is crap" or "that music is great" and still understand that it is music. Art, in general, is the same way.
And, like I said before (300 posts ago or so), "fine" art is to be contrasted with "vulgar" art, where a vulgar (common) art is something executed for a purpose or end, and "fine" art does not need any purpose. It is made with the idea that its existence is worthwhile in itself, that it is something to be experienced to the exclusion of everything else.
That can easily lead you to the notion of the "sublime", which was the ultimate art-experience coming out of medieval philosophy (almost always having to do with religious "uplifting"). The "sublime" is a concept that really pushes a rarefied notion of art (artistic/religious epiphany) and should be left in mouldering old books where it belongs.
"Fine" art is a valueless description. It is not really as a purposive object that art is ever appreciated as specifically art, so the limiting notion of a "fine" art adds nothing. That's why you can remove an object from its function and recontextualize it as an art piece. (Picasso's bicycle seat bull, for example - which is not art because it is a bicycle seat and handlebars but because of the reconfiguration of those objects into a sculpture.)