It’s a rite of passage. It’s as American as Apple Pie. Growing up, every kid needs to be told to “get off my lawn!” by their old cranky neighbor, at least once.
Metaphorically, this is what happens on a grand scale with each new generational cohort. Young people are labeled “lazy” and “self-centered” by the generation that precedes it. They’re criticized for the way they dress, what shows they watch, and the music they listen to. This is what’s happening currently with my generation, the “Millennials”.