Reality is reality, a collection of information from eyes, ears, and other receptos.
OK. Tell me what reality is. Do colours exist? Does the universe exist? If yes, how do you know? Does a tree in the forrest make a noise when it crashes down, when nobody is around to hear it?
I do realize that it might be unfair to put this questions before you, because you are only fefteen, and you may not have learned much in the philosophical area. But it might get you interested to read some philosophers and learn whatour universe is made of and what our position in it is. Much better then dabbling into religion in my opinion.
People become crazy because someone or something else influenced them.
What about people who are mentaly ill from birth on? I'm not nitpicking, I just want to get you thinking beyond what you think you know. There are all kind of cases and you don't know all of them, so you should keep an open mind abuot things and be aware that you don't know everything.
People don't be sane, then start thinking about something, and go crazy.
How do you know that? As I said, there is not a single cause for anything. It usually is a pile of causes which happen to have an effect, and this combination may not work the same on everybody.
They had a bad childhood, they were insulted physicaly and psycologicaly, they did drugs.
Yeah, I know all these cliches, but they are not true. Of course some of them happen this way, but if these were the primary cases then we should expect much more cases in earlier time.
Halucination is something you see before you, not think up in your mind.
Well, when I read a good book, then I can see everything that I read like a movie before my eyes. In fact I can also recall these images just as I have seen it in a movie.
Also, halucinastions are uncontrollable.
It depends on the dosage.
As I said, there are cases, ranging from mild forms to serious ones.
Dreams are natural, even animals have them. I don't think alcohol can cause significant changes, but drugs sure do...
Just because something is natural doesn't make it good. Consider digitalis. This is a poison that you can find in certain plants. If you eat enough of it you get killed, but applied in small dosis it is used in medicals for certain heart problems. Now what does this mean? Is digitialis bad or good?
Games don't influence your organizm.
Did you ever read the manual of your games? Why do you think that in most of them is a disclaimer for epileptics? If it doesn't influence YOUR orgnasim then why do you play? Because it does.
If games can't influence your organism then why was somebody killed because he 'stole' a virtual item in World Of Warcraft? Apparently it influenced the owner of this item enough that he thought it a sufficient reason to kill somebody over it.
I can play a game 12 hours in a row but I'm OK. I don't have liver cirozis or halucinations or even eye damage... The bring a good thing, and the bad one they bring is almost 0.
For you. That doesn't mean that this is the case for everybody else. There are people who get divorced because of excessive playing, or loose all they have because they don't care anymore beyond anything except their gameworld. That's also reality and you can't discrad these facts just because you or I are not affected in such a way. In fact I had times when I was younger where I also started down such a road, but apparently my safety catch is good enough that it prevented me sacrificing everything.