No sir. Name one kage tha was a host. The host has to be in the kages family. Minato kishina hashirama mito A adopted bee and he was chosen to be the next host. 4th kazekage gaara. The only reason gaara was chosen to be kazekage was so that the elders could keep a eye on him.What does being a host have to do with it.There have been Kages who are host before.The only reason Killer Bee couldn't leave the villages was because of his brother's order, so if A passes or retire from the position of Raikage, Bee's is no longer bound by that order.
"In order to prevent the jinchūriki from turning traitor, it is tradition for the host to be selected from the family of the village's own Kage."
You must be registered for see links
read under history