As Samuel Clemens observed, "... at seventeen I could scarcely endure my father, the old gentleman was so ignorant; at twenty I noticed that he said a sensible thing occasionally; at twenty-five I was astonished at the improvement my father has made in the last eight years."
LOL! My dad was useful helping me fix my car, discussing electronics and politics, telling stories about old sci-fi plots he'd read, but not terribly handy at giving me life advice.
I was surprised at how much wiser my mom grew each year, even though most of what she taught me to prepare for adulthood was sadly outdated by the time I grew up..how to fold and safely pin a cloth diaper, how to kill, pluck, and cook a chicken (turned me into a vegetarian), how to be the obedient wife (never refuse sex, and always forgive and forget..a formula to encourage abuse, which it did.), and taught me Bible stories..which I no longer believe in.