So, I had the pleasure of playing with a 9 year old today.
http://i.imgur.com/ZkRlyrf.png?1
Im perfectly fine with playing with kids, especially in normals. In fact, I encourage people to play with family members, its good family time.
HOWEVER, if you are going to bring your little brother/sister/kid into a game with you, please, Please, PLEASE try your best to convince them NOT to play champs such as Riven, because if you don't the picture above is what will happen. I don't mind if we lose, honestly, but I would like some sort of fighting chance against the enemy team. I would actually like to deal damage to an Irelia who is at 25% health. I would like to be able to go into a teamfight with the knowledge that if we get demolished, it isn't because it has essentially been a 5v4 all game, and once that Irelia comes in, we don't have a glimmer of hope.
(For some background, apparently Lee and Riven were related. Lee said that the kid tries to copy him when playing a game, and thus he chose Riven. As for me, I was doing ok against Zed.......until Irelia, who, had around 8 to 10 kills by the 20 minute mark.)