In our school at maritime department we always celebrate this kind of event
for graduating student, in maritime you can say they're graduating because after 3 years of study they will now find a ship to finish the fourth year to became a degree holder. We celebrate it early because in finishing apprentice ship we're not the same. Others can be onboard early while others can't and those unfortunate they can't be onboard for their whole life if they dont work hard.
Most of us we took pictures for our memory. We must have pictures so that in the future you can look back into your memories. Pictures explain everything, a package of memories. It explained the hardship and wonderful in life. So better to have a picture, one look of it then you'll see your face smilling and crying. Well good and bad happens all the time.