I was quite addicted to video games until my early 20s, but I eventually understood that gaming falls down the priority list as you take on more responsibilities in life. My friends were the same.
My university roommate played video games nonstop. Then he graduated, got a job (as a video game developer) and has a wife and three kids. It's like any addiction, its filling a void, but the object of abuse is not what's to blame.
We don't expect everyone to be able to run a 10-minute mile, even though most people can. Likewise we shouldn't expect everyone to be able to hold down a 40+ hour-a-week job and "functional adult" life, even though most people can.
not so different than runaway teenagers, or ex-Mormons that escape Utah