I picked the trash (empty soy milk box) out of the sea

I picked the trash (empty soy milk box) out of the sea. I don't understand why people throw their trash into the sea or river. They are so mean! Every time I see a trash in the water while paddling, I always take it out of the water and bring it back to the beach and finally throw it into a trashcan. Please keep our paradise clean! 🌴😍🌊😃🤗😘