they don't believe they will die
Bullseye, BelMarduk.

The belief that they are "immortal" (i.e 'it won't happen to me') is the psycho-social demographic which explains why insurance rates for male drivers under the age of 25 are stratospheric.

It is, of course, a great irony of human nature that testosterone-driven males, who have the most to gain from life, are the most eager to wager it for absolutely nothing.

The "immortal bard" understood this, wwh, as he understood most everything else about the human psyche. In the "7 stages" of life, he gives us the boy-warrior "seeking the bubble reputation even in the cannon's mouth".