Why are the Jinn prohibited to enter our world and influence it?

If the Jinn were to come to our world, it would be a form of mischief and they would create confusion and cause harm. They are forbidden to cause harm to others, just as we are forbidden to cause harm. Therefore, the prohibition of doing harm to humans, involves stepping over the barrier and coming into our world. They are thus prohibited because to enter our world as it falls under the general prohibition of harm.