Disclaimers: I own nothing
Do you know what it's like to be alone? How about being alone for the first 16 years of your life? Chuck knows what that's like. How? You see, when he was barley a year old, his home in Detroit had been destroyed, killing his parents in the process.
Sure, a small group of the other people who had been left homeless due to Kane's wrecking, particularly an older couple, who had been left without a home for two years, and were forced to live in an old shack with three other families, had eventually found the child and took care of him, but he still didn't have a family. Eventually, the old couple, who took care of him for all these years, had found a new home, and abandoned Chuck, but it didn't matter, he was 16 now, that should be old enough to take care of himself, right? Sort of, but, by now, Chuck had been taught to fear the world, and everything in it. He was getting to the end of his rope, when he met Mike Chilton one night while walking around Motorcity, looking for a place to stay the night. Now, let's be honest, Mike once worked for Kane, and Chuck had almost every reason to hate him for that, but he didn't.
Why? Because, Mike had taken him in, too, he let him become a Burner, and let him stay with him. Chuck began learning how to trust people, and how to love someone who needs you, and how to actually care. This is exactly why when a 2 month old baby appeared on the Burner's door step, Chuck took her in, on a personal note.