Take the painting, "Song of the Angels" on the right by William Bouguereau, quite possibly the best artist of the 19th century and arguably of all time. Many people today would not appreciate a painting like this and don't understand why it is an example of great art.
As one who is inspired by classical art, I'm concerned that kids today are not exposed to great art. Even college students are led to believe that work like this is "sentimental," "derivative, "boring" and worse.
Sadly, we have many art "professionals" who promote an agenda that de-emphasizes developing skill and discipline in the arts. It's like music students learning to play, sing or compose music without learning anything about scales, chord theory or other basics.
Add to this the fact that when school budgets get tight, the first things eliminated from the curricula are the art and music programs.
I'm one of those who believe so many people, maybe especially in America, see art as being entirely trivial -- nothing more than a decoration that matches the sofa and window treatment and that "ties the whole room together." And kids, and even many adults, know (and will learn) nothing about art and what great art can do for us. What will this do to the future of art and to those of us who make (and try to sell) traditional/classical art?
A fella by the name of Brian Yoder has a Website where he discusses the topic of great art in more depth than is possible here. Whether you agree with his viewpoint or not, his comments will make you think. Find his thoughts in his "frequently asked questions" section: http://www.goodart.org/faq.htm
Also, an outfit called the Art Renewal Center has many online articles and a vast collection of traditional artwork (also online): http://www.artrenewal.com (note: some of the art shown on this site, including the home page, does show nudity -- not to be confused with pornography IMO).
Meanwhile, I'll be busy -- painting in the classical style, and worrying whether or not anyone will even like this stuff in 10-20 years.