I like the realistic version of the characters. It really puts into perspective how many people would be afraid of them and/or shun them after they came to the surface.
You're not ****** forever. Don't listen to them.
Just don't kill anyone else. Ever.
Especially not Papyrus. Or Undyne. Or Metaton.
Seriously. If you keep going down that road, you're gonna have a bad time. Get off that road immediately.