It's the thing about family , if there is no one feel sorry for you when you leave , you will understand that you'll never come back .
But again , a family with little jokes and little hearts , a little asking "Are you OK ?? " here and there , will always makes leaving become so hard .
But then again , all of us have to leave to move on anyway , changes are always hard , but it's a part of growing up , we don't grow up in a family , we grow up in the outside world , and the outside world is cold , harsh , mean ... We can fell , failed , kicked but then we always can get up and continue , because we know , deep inside , we all have a home to go back to .