Oversimplification, thy name is Sans. It's far easier (and shorter) than the complex version.

"Heh, man, you and Frisk... who told you it was your responsibility to look out for a bunch of adults?" His voice isn't unkind, but there's a concerned edge there. "I know you've seen a lot of shit Steven, but the fog goddess isn't here. You can... be a kid, y'know? You should do that. Leave saving the world to the ten thousand muscle men we've got patrolling the halls, am I right?"