Three!
Let's do it the other way. I'll name only one where living with your parents is considered not kosher - the USA. In practically every traditional society, living in the family home is just fine, especially for those members of the family that don't have their own homes.
In fact if the family home is sizable, raising your own family inside the family home is OK too. I've seen it everywhere I've traveled - much of Africa and South America.