Ujm, your comment that it isn’t obligatory to give a get is absolutely disgusting. If a woman wants a get she has to get a get unless she is making unreasonable demands or withholding visitation rights from the husband. I am not saying that every single divorce was done out of necessity, but I believe the vast majority was necessary.
You know what, a lot of things are not obligatory according to halacha, that does not mean we don’t do it. Withholding a get for no valid reason gets a man on the path straight to gehinom.