Reasons for divorce vary from sexual imcompatibility to a personality clash - do you have any experience?
The experience I have with divorce is that both of my grandparents divorced relatively early. 
The laws seem to vary around the world on it, but in most cases you still need to go through a legal process.
I agree with the legal process. Usually, at least one of the parties has grievances or issues, so a legal attorney paired with a judge to make sure the whole procedure goes smoothly and fairly seems like a good idea. 
And then you have to deal with things like alimony, child custody, visitation, child support, property, and debt.