Water Solubility

We make our countertops with quartz, our clothes with cotton, our windows with glass, and our streets with asphalt because water can't dissolve these materials. They're made mostly of molecules with no charged parts. It would be silly to build, say, windows with something that can dissolve in water, like sugar... unless you're going to eat them. And lots of the substances that water DOES dissolve, like washable markers, are things we engineered so that they can be washed away. We've also engineered versions that aren't dissolvable in water for when we don't want them to be washed away. By making sure water dissolves what we want it to and only what we want it to. We've been able to adapt a life to a world in which water dissolves so much stuff. We humans also literally adapted to a world in which water dissolves so much stuff. The outer layer of our skin is built in a way that makes it uncharged and therefore undissolvable. And the membrane surrounding each of the cells inside us has a similar undissolvable layer. The only reason we humans exist at all on this watery planet or that trees, fish, bacteria, or anything else exists is that we evolved barriers that could keep water from dissolving us into goo. Any life forms that didn't were simply dead in the water.