Socrates (allegedly) said:

Our youth now love luxury. They have bad manners, contempt for authority; they show disrespect for their elders and love chatter in place of exercise; they no longer rise when elders enter the room; they contradict their parents, chatter before company; gobble up their food and tyrannize their teachers.

Alas, it is a fake quote. quoteinvestigator.com

But I bet Socrates would have said it!!