“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.”

This could show that older people always think these things about younger people. Or, it is possible that the respective cultures were in a period of decadence both then and now, and that the views of older people are at least somewhat accurate or meaningful.