Many of the youngest generations will be among those who would FREAK if there was any kind of real disaster or collapse.
All the time spent playing multiplayer online games could have been spend doing literally *anything else* which would have been more useful in REAL LIFE.
If forced to spend 100% of time IRL, they will be at a severe disadvantage, as literally years of their life was spent in front of a screen clicking on Orcs and leveling up, or playing military first-person simulations (Call of Duty, etc.) -- almost 0 of which would transfer well to actual combat, survival, or tactical skills.
Aiming with a mouse or keyboard is NOT the same as handling a real gun! Need I point out.
And think of how little discipline gamers have. When they lose, or get frustrated, they call their opponents filthy names, racial slurs, cuss words, blasphemy, etc. Some even get physical, destroying or damaging their controllers when they really lose their temper. Where is it acceptable to act that way IRL when things get tough? But here's the real issue: you can taunt and belittle your VIRTUAL opponent all you want; he lives across the country. He's not going to fly out and beat you up. But IRL? You'll get your butt handed to you if you tick off someone standing in front of you.
As I said above, those who live in front of their PC are not known for their fighting prowess, IRL skills, or any kind of RELEVANT experience.