The-Magic-Sword
Small Ball Archmage
So, putting aside the emotionally load bearing nature of the person in this example being a child and an adult picking on them, the person sitting down and demanding the other player not be competitive and getting booty hurt about the other person try-harding when the object of the game is competitive is suffering from scrub mentality.Have you ever played a game (sports, cards, pool, etc) with a kid? To them, they're mostly just goofing around and having fun enjoying spending time with an adult who will give them the time of day. Now imagine a hyper-competitive adult sitting down with that kid and playing to win. Crush the enemy, etc. The kid goes away crying and the hyper-competitive adult pats themselves on the back for a job well done. Now, a reasonable person would say that the hyper-competitive adult was an utter jerk. I'd say they misunderstood the conditions of the test. For the kid, the point was to hang out and play around. For the adult, the point was to win. At all costs. Regardless of the kid leaving the table in tears. The adult ruined the kids fun because, for the adult, the fun was the winning. They have opposed goals.
If the whole table is hyper-competitive adults out to win. It works because they're all there playing the same game for the same reasons. If there's some teenager there trying to learn the game, it suddenly falls apart. If there's a kid trying to just play, it really falls apart.
To switch analogies...have you ever tried to help a person older than you with technology? To them, they're at their wit's end and just need help figuring out how this damn thing works. So they reach out. To you. For whatever reason you help. Now in the process of helping you decide it's a perfect time to insult them, belittle them, and mock their intelligence all because you have a bit of information that they do not. Most reasonable people would recognize that the "helper" is really a jerk. They misunderstand what the situation is. An opportunity to help. But they read it as an opportunity to gloat and demean. The adult ruined the older person's day because, for the adult, the point was to gloat, demean, and show off. They have opposed goals.
What's this all have to do with your question? People in the same situation with wildly different expectations can drastically alter the outcome of that situation...especially when there are differing sets of mutually exclusive goals.
While DND isn't competitive and our ability to select for our groups means we can communicate expectations, absent those alterations, the object of the game does seem to be playing an adventurer who overcomes challenges, that's what the game's design points to anyway.