We have 5 generations of high risk behavior in (mostly) adolescent females in my family out of six...and that one where there was none was a generation that was all boys.
Tell me that's not genetic....
High risk behavior for adolescent girls would be reckless sex, which doesn't seem very rare.
Hitch-hiking across the country, jumping from airplanes, wrestling gators, and the like don't count as high risk behavior for girls, they're just plain dumb.
Men spread their seed, women't don't.