Is it okay if I don't drink much pure water?

For context: I drink mostly things like milk, pop. Gatorade, kool-aid, and juices.

I know that kool-aid and Gatorade ate mostly water, but my sister and my mom, keep saying to drink actual water because those drinks aren't properly hydrating me. I used to get migraines every once in a great while, but only when we didn't have any Gatorade or kool-aid in the house. I don't really like to drink water, since all of the bottled water that I have tried tastes gross, and my tap water does too. I know that water is supposed to be tasteless, but it just isn't.

So, is the Gatorade and kool-aid actually helping me keep hydrated properly?