THE time-honored way to speak of young people is with horror. They’re wild, reckless, irresponsible, narcissistic, immoral and hopeless — and always have been. Now along comes this generation of millennials, and we have a problem. They are raised on “service projects,” apply to Teach for America in torrents and donate to charity at a higher rate (87 percent) than their elders. Basically, they’ve stabbed us older generations in the back with their idealism and altruism, robbing us of the opportunity to feel superior. One of the exemplars of this trend, also catering to it, is Barbara Bush, 33. Yes,...