Are we ready for our next step in life

I met up with a friend who is going for NS day after I start work.  He brought up concerns with regards to adaptation away from home and adaptability to a different lifestyle.  That got me to wondering if we can ever adapt to the next step in life.  We may not be able to tell the future but we can learn to live and adapt to new parts of our lifestyle.  I hope it will work out well for him.