Gen X “lost their childhood innocence” by having sex sooner, but embraced adult commitments by getting married later. But that trend wouldn’t last forever: After teens transitioned to Millennials, the age for having sex started to rise, as did the age for marriage and children, pushing the life trajectory markers back into sync so all of them were slowing down. In sum, Gen X’ers had the shortest childhood and the longest adolescence of any generation born in the 20th century.
