Why is my job necessary?

Why is a job like mine necessary?
Let's Ride Bikes' mom was a drug addict who frequently left him alone as a child until he was taken away from her.
Math Major's father seems to be incapable of saying a kind word.
Virgil fled an his home country and became a refuge in a boarding country until eventually coming here.
Headache's father is in jail for abusing him and his brother.
Fake Gangsta's mother keeps him up all night watching TV & then let's him wander around town at night by himself - when he's not babysitting his two year old sister.
Trains! has a disappearing/reappearing father and step father.
43%'s mom is unstable and was abused by his father - which he witnessed.
The Magician's mother seems to have 1 method for communicating with him: yelling.
School Much?'s mom had a restraining order against his father - with whom he now lives.

That's just for starters. With most of my students, the history is much longer. I'm sure there's an organic cause for their disabilities but there's no doubt it has been exacerbated by their environments.