I will give Riku a little credit, though, because he did explicitly mention parents once in the first game.
Riku: Once we step through, we might not be able to come back. We may never see our parents again.
With Riku it's fine because he totally throws away his parents. lol It'd be funny to learn that Riku has the most loving parents out of anyone too.
They don't?
Let me check on my parents real quick... Nope. They're people.