I do like COD black Ops. Dont have a PS3 or Xbox, but my mates have COD (one on xbox one on ps3), and its rly freaking funny to play the modes together. The one where u start with a 1handgun, and everytime u kill one u get a better weapon (1 kill = 2x1hand, 2 kill = better 2x1hand, 3 kill = pumpgun) etc. like you cant kill someone and your mate already has a bazooka and you kill him with your first weapon. its fun, really.
but alone its not that "funny", if you play it alone (most likely on PC), you're in another world. you're not present, you're IN the game. while when you're playing with some mates (and switching controller after each match for example, or even if not) you make breaks inbetween. even if its just a "haha killed you", youre not IN the game, you still see things around you (not as good as someone who's not playing, because ofc, you are concentrated, but alone you totally forget whats going on around you).
IMO games are made to be played together anyway. and since games are "normal" nowadays, its socially good if played together like lets meet do this, play some. but if you're comming home, play alone for X hours and totally forget all things around you, u know. when I had holidays for 5 weeks last year, where there was not enough money to do smth special, a good mate asked me once if I'd come to him, he has a new Xbox with tekken5 and CoD, enough to smoke and to eat and all. and this lasted for 5 days or so. other people came in (1 maybe slept there too), we were actually either talking about this or that or playing ( or both), maybe a DVD inbetween, and this is what we were doing all day actually. from in the morning in to the night. that were some relaxing 5 days, and you didnt even feel like "ive lost something, wasted time", while when you would do this alone, you'd maybe be like "i could have made much more out of that week".
together, that is.
Ugh, felt like writing. hehe

about that "not a way to educate children", well, IMO more than 90% of all parents are not able to educate their children the "right" way anyway. Ofc they mean it good and think they're doing the best they can, but when a mother or father ask themselves "am I doing the best for my child?", its actually the wrong way (not bad tho). you cant tell your kid smth like "realize whats important for you in life", or you cant say him "THIS is important in life" at all. they have to find it out by themselves, all you can do is give them tips on their way, you cant carry them. you cant save them. ofc you can save them from running into a car. but you cant keep them free of problems, mistakes etc. they are essential. and what many parents do is way more dangerous for the kid as any PC game. I could go into detail for another 10000 lines, but, pc games arent the problem people should focus when they hear the word "education". I, for my part, had the freedom to do anything, make mistakes and all. and my mom didnt run to me when I made one and kissed my butt "everything is good", nor did she burn my ass BECAUSE I made mistakes. she left me space to react, to experience.
so I dont see why you dont play such games "BECAUSE" its the wrong way to educate children in your opinion. just my 2 cents to it.