Mostly it is for the same reason that people do not believe in any gods. There is simply no proof of their existence. Holy books such as Tanakh, Midrash, Bible, Qu'ran, Book of Mormon,etc, are only claims of supernatural beings. They are not proof and cannot be proven; just like they cannot be disproven either.
All the same reasons that are used to prove the non-existence of a god(s) work for the existence of a devil (Satan) or even minor annoyances like the monster under the bed. Believers have snappy comebacks for them all but the discussion is like Carl Sagan's discussion with his neighbour about the existence of a dragon in the neighbours garage. (See Link)
Satan under the Christian conception only exists in Christianity and Islam. Religious Jews, for example, do not believe in a Devil. There is no reason, based on the Tanakh (the Jewish Bible) to come to the conclusion that the Angelic Opposer revolted against God and established dominion over a Hell.
Jews, as well as most Christians and Muslims believe in Satan, so abut 4 billion people can be said to believe in Satan. That is a lot of people to believe in a being who only exists in the imaginations of believers.
Some Irish people do and some Irish people do not.
* No, it is not bad. In fact, you should believe in Satan. If you don't, then you probably don't believe in God. God believes in Satan--he created him! Christians believe that it is bad if you worship Satan or do things that you know are ungodly, but it is not bad to believe in him. They say you should just make sure that you do not worship him. * Not at all! Satan is a wonderful deity, and Satanists believe he is the true, original god. They say, do not be afraid to worship him, just do what you believe in and don't let people get in your way. * Satan is the absolute opposite to God so if you believe in God you should also believe in Satan as well.
Yes there is the church of satan is common people who do not believe in god goes there.
Many Muslims believe that Satan was thrown out of heaven because he refused to bow down before Adam. Christians believe that Satan was thrown out of heaven, but usually for other reasons. Jews believe that Satan is still in heaven as the loyal assistant to God. In this view he was never required to bow down before Adam and Eve.
Christians, Muslims, and Jews all believe in Satan but I think the word you may be looking for is satanists. Why? If people believe in a god as a positive force, then there is usually the belief of an opposite or negative force to counteract it.
I believe it's possible yes.
people are drawn towards Satan because he represents freedom, chaos and a sense of raw wildness which people want as a way to break free from their every day lives.
That depends on how you know it was a ghost, and how you know it was Satan's ghost. People who claim to have seen a ghost do not - generally - know whose ghost it was. Those who believe in ghosts tend to think that they are the spirits of dead people. Those who believe that Satan exists would say that Satan is neither dead nor a person, and so cannot have a ghost.
The word Satan should be capitalized because it is a proper noun. Although some people may refuse to capitalize the word as they believe it gives Satan "power" or "status".
Different people have different beliefs. The same way one believes in God or another higher power, Satan worshipers believe this is their savior.
He has no physical needs like humans. Answer The Christian and Muslim descriptions of Satan do not include any mention of sexual orientation. The Jewish definition is so completely different, to the point where it's safe to say that Jews don't believe in this concept of an evil being.