Seriosly?

Have you ever stopped to think about minecraft? I mean REALLY think? Like, when you walk into a cactus and it hurts you, you can then punch it and put it into your pocket without taking any damage. And why is a nether portal made of obsidian when there isn't a single block of obsidian in that dimension? And sheep, well, what is the use of a sheep except making beds?

But here's a challenge for you. Make a new world, and choose super flat customize. Go to presets and choose water world, or whatever it's called. Then, try playing that world on survival. Huh, good luck with that!