as for my friend he always do exite perment he is his father sponser also and every time ho go out he do the exit .
for me i will advice u to do the exite b4 u go if its not requird then they will tell u becs in case u leaving without ur father maby they will ask u for exite its batter u coming back from airport and runing for exite .

but mostly its not requird the exite