Aging is going to happen, and while some lose our hair, while others grow a little gray. Steve is on the verge of having a gray head and not sure whether he should dye it or not.
Slacker has lost his hair so he at least has won this battle (but on the other hand lost an even bigger one) and has been able to avoid this hairy situation. However his friend couldn't escape it and had gray hair at 19. Slacker at least has a full head of hair but is starting to gray a little bit.
Coming from families where one side balds, while the other has quick coming gray hair, I can easily say I'm screwed in terms of genetics. Out of all the brothers my dad has, only him and one other brother were not able to go bald. My mother's brothers starting going gray around 25. I'd much rather go for the gray and (trust me) am in constant prayer for it.