Carl doesn't need a slick ride to get around. Bieber would have dropped miles back, since he wouldn't have his wicked wheels.
Added:
When he and Rick discover Lil' Asskicker is missing, they mourn. That's more courageous than hiding pain and feelings like Bieber seems prone to doing.
Added:
Carl can wield a shotgun with purpose. He's not doing it to look cool, but to save lives. Bieber would probably blow a buddy's hand off.
Added:
Carl can grow his own food to sustain life. Bieber would starve to death without his people to provide for him.
Added:
Minutes after delivering his baby sister, and faced with two options: Mom as a zombie or putting a bullet in her head, Carl chose the latter. WWBD (What would Bieber do)? Faint.
Added:
After the apocalypse, Carl can deliver a baby with the added pressure of being surrounded by zombies and certain death of his mom. Bieber would cut and run.
Added:
Daryl sits around the fire in this Walking Dead scene. It is from the episode "Inmates."
Added:
Rick has seen better days on The Walking Dead. This is a photo from "After."
Added:
It's safe to say Rick has seen better days. This is a photo from The Walking Dead Season 4.
Added:
Daryl Dixon is back in the woods on The Walking Dead. In other words: he's back to where he belongs.
Added:
Carl appears to be doing some breaking and some entering in this Walking Dead scene. It is from the episode "After."
Added:
Michonne has made a couple new friends. This is a photo from The Walking Dead Season 4 Episode 9.
Added:

The Walking Dead Quotes

You walk outside, you risk your life. You take a drink of water, you risk your life. Nowadays you breath and you risk your life. You don’t have a choice. The only thing you can choose is what you’re risking it for.

Hershel

How many walkers have you killed? How many people have you killed? Why?

Rick