The "30 freakout" is one of the great undiscussed traumas in our society. I don't know if this is just an American thing, or a product of western culture, or if this is universal. It needs to be addressed, and I wished people started talking about this to kids in high school. I believe this is a more significant problem than the mid-life crisis.

For whatever reason (base 10 maybe?) we latch on to 30 as the time by which we should have some proof that we are on the right track. You can always beat yourself up at any age by comparing yourself to others. If you're in college, look at a Galois or a Joan of Arc and you're already a complete failure.