That's a matter of opinion, but you could call it wasting time as it contributes nothing to this world.
Instead of wasting your time watching TV, you should study.
You get entertainment.
AnimeCrazy and youtube
You can ward of boredom for a while.
Check Hulu
Nope but if you want to watch the new releases as soon as they come out then you will need an account and then you will have to pay.
Maybe they want to be younger again and/or they just find them amusing.
Yes... yes you should.
An ambiguous question , for news try Anime News Network and for watching anime on line see CrunchyRoll.com
Otaku is a person who is highly skilled or obsessed in anime. They spend more time in designing cosplay, collecting anime figurines, and watching anime than normal people. The word otaku came from the Japanese word "house", where nerds and geeks tend to spend their time. In the West, otaku became the word to call people if they are obsessed with anime.
Some viewers draw anime because after watching anime they wish to see if they could replicate the feat that the artists in the industry can.
just keep watching it and it gets interesting... I'm hooked