Economists have long speculated about the existence of resource curses. For instance, a nation rich in a finite resource such as oil might rely too heavily on it and fail to develop other areas of its economy.
What about a hot girl resource curse? On average, we would expect hot girls to have an easier time at life while they're young. If you constantly have guys fawning over you, it's hard to make yourself buckle down and learn Chaucer or calculus. These girls have less of an incentive to study or invest in other areas of themselves, as they can go through their young lives with stuff being handed to them.
But just as Arab countries may eventually run out of oil, the hot girl's main resource--her looks--is also finite. Once her beauty fades, she may regret not having invested in other areas of herself earlier in her life.