My parents are divorced, unfortunately. The reasons people get divorced are, sexual incompatibility or lack of independence for one or both spouses which can cause a personality clash  
I am sorry to hear that.  I know that divorce rates are much higher now.  Right around fifty percent
Yeah, i can believe that. Divorce laws vary a lot around the world but in most countries divorce requires the sanction of a court or other authority in a legal process, which may involve a lot of issues
And there are many issues to iron out.  If there was no prenuptial agreement, then it could get pretty messy in court
Very true! i've seen that happen a lot on tv.  divorce should not be confused with annulment which declares the marriage as null and void with legal separation but while still remaining legally married 
Another issue that concerns a divorces is if the married couple had children.  Then custody has to be determined.  And also visitation rights come into play
Yeah, that can get messy. In most countries monogamy is required by law. so divorce allows each former partner to marry someone else. 
Divorce costs millions and millions of dollars in legal and court fees every year