Are you a 'Trick' or a 'Treat'?

Curiosity got me thinking about where the phrase 'trick or treat' came from. While there are many tales out there, I came across one that took my train of thought in a whole other direction.  The phrase is a subtle suggestion that if a "treat" (candy) is given, then the child will not perform a "trick" (mischief) on the owner of the house. Hmmm, interesting, right? More than the 'trick' or the 'treat,' the word child stands out to me. It screams, "Give me what I want (frills and thrills), or else I'll throw a tantrum!" Yea. That about sums it up.  I mean, doesn't that sound a lot like the relationship encounters we see today?