Firstly, It is unrealistic to except all countries to destroy their weapons.

Secondly, the effects of nuclear weapons are so devastating that no will use them.

Thirdly, No they shouldn't.

Nuclear weapons are the main reason we haven't had a world war 3, and no other major war since 1945. Many people think that nukes will be the end of the world, and it makes sense why they would think that, but if we destroyed our nuclear weapons, do you really think that Afghanistan, and other foreign countries that are itching for power really would? The nuclear weapons should not be abolished as they are a big source of world's peace. All the super powers of the world have nuclear weapons and if they are not using it then its only because they know that others have them too. I mean come on who the hell do not want to be all and all in the whole world. So if someone finds a way today to destroy other countries who won't ??? !!!