I'm drawn to how culturally-specific Havighurst's and Levinson's stages are. While some of their stages do seem "universal," these checkpoints are (and, historically, have been) slightly different for different people in different times and places.
I'm also curious to learn more about Erikson's "crises" (the one example of early childhood development was intriguing), though I find his vocabulary revealing ("crisis" versus "opportunity" or "threshold").
