In Plato's Republic Book 4, Socrates is quoted saying the following regarding things that he thinks have been neglected: "I mean such things as these: ?- when the young are to be silent before their elders; how they are to show respect to them by standing and making them sit; what honour is due to parents; what garments or shoes are to be worn; the mode of dressing the hair; deportment and manners in general. You would agree with me? ?- Yes."
"The children now love luxury; they have bad manners, contempt for authority; they show disrespect for elders and love chatter in place of exercise. Children are now tyrants, not the servants of their households. They no longer rise when elders enter the room. They contradict their parents, chatter before company, gobble up dainties at the table, cross their legs, and tyrannize their teachers.
ATTRIBUTION: Attributed to SOCRATES by Plato, according to William L. Patty and Louise S. Johnson, Personality and Adjustment, p. 277 (1953)."
Bartleby.com
http://www.bartleby.com/73/195.html
or
"I see no hope for the future of our people if they are dependent on frivolous youth of today, for certainly all youth are reckless beyond words... When I was young, we were taught to be discreet and respectful of elders, but the present youth are exceedingly wise [disrespectful] and impatient of restraint" (Hesiod, 8th century BC).
It should be noted that the attribution of this quote is as shaky as the quotes to Socrates.
But all the quotes help to make the point that adults throughout history have been alarmed by the behavior of young people, and civilization hasn't yet come to an end because of the rebelliousness of teenagers.
"SAME AS IT EVER WAS, SAME AS IT EVER WAS."
Talking Heads, Once in a Lifetime (1984)
btw: its turtles, all the way down.