A great deal of evidence shows that whenever speakers become aware of
a change in the mechanism of the language --- the grammar or the sound
system --- they reject that change.  In the course of interviewing
many thousands of subjects, I and my colleagues have found older
people who liked the social changes around them.  They often admire
the new cars, airplanes, computers, television sets, even the new
music or new foods available at the supermarket.  But no one has ever
said, ``I really like the way young people talk today, it's so much
better than the way we talked when I was growing up.''

-- William Labov (2001), Principles of Linguistic Change, Vol. II: 
Social Factors, pp. 512--513.