The decision to move is also influenced by 'personal factors' of the promising migrant. The same push-pull factors and obstacles S1. ______ operate differently on different peoples, sometimes because they are S2. ______ on different stages of their lives, or just S3. ______ because their varying abilities and personalities. The prospect of S4. ______ pulling up stakes and moving to a new and perhaps very strange environment may appear interesting and challenging to a young, footloose man and frightening difficult to a slightly older man with a wife S5. ______