Why do some kids only watch videos of others playing video games on Youtube?

My 12 year old niece watches people play Minecraft pretty much all day, even though she has the game herself. My 14 year old nephew does the same watching others play one of those Black ops or COD games. And when his dad thinking he only watched the videos because he didn't own the game himself. So when his dad bought it for him for his birthday, he didn't care and still continues to watch videos instead of playing it himself. I tried asking them but they just shrug their shoulders and say I don't know. Are kids today so lazy that even playing video games is a chore? And another thing tuchhat bothers me is most of those youtube commentators are so foul mouthed and immature. One of the youtube channels that my niece was watching with a girl playing minecraft, also has another video about how she sells her dirty panties online to older men. Why can't these youtube celebrities have a little more class when they have a younger audience watching their videos.

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