Because for teenagers, they don't pay much attention to their "words" and "virtues", and "beauty" is relatively important to young people.
However, mature people are at the peak of their lives and careers. Relatively speaking, most of them don't pay much attention to their own "beauty", and "virtue" is too early and too heavy for them, so they will pay more attention to themselves.
"talk"
The elderly are indifferent to "beauty" and most of them don't pay much attention to "talking". There will be a so-called generation gap between young people and teenagers, which will make them unwilling to communicate more. For them, their life's "virtue and behavior" is more important.