China has the demographics for pervasive addiction today with its moderately educated, underemployed, sexually-suppressed overpopulation of males (35M more males than females in 2009). This should lead to massive political unrest as in the Arab Spring and the knee-capped Iranian revolt of '09, but hasn't. I suspect that a significant force behind this pacification is gaming. Instead of banning Skinner boxes like WoW outright, the Party asserts control by dictating how much XP such games can deliver (cynically, drip), at what rates, for how long per day.
Without doing anything 105 Men are born per 100 woman. With a population of ~1.338 billion you would expect up to 1000/205 * 5 = 32 million extra men. Men don't live as long as woman on average which tends to balance the genders. But, China's population demographics are also messed up from 1 child policy so it's a little more complex than you might think.
