The best ever teaching version of D&D, in my view, remains Moldvay Basic. And it has examples, including examples of adjudication.
Gygax's DMG is not a particularly good teaching book, but it contains many worked examples: of dungeon design; of treasure placement; of world-building including "supernatural" elements like other planes and worlds; of magic-item making; of combat; of adjudicating ad hoc modifiers to saving throws; of adjudicating PC interactions with doors (listening at them, opening them, searching for secret one); etc.
The 4e DMG, on p 42, has a worked example of adjudication. Subsequently, in the discussion of skill challenges, it has less-elaborately worked examples of adjudication. One thing that is missing from the 4e DMD is any discussion of how the imposition of non-damage effects (eg forced movement, conditions, and the like) should be factored into the adjudication framework, and this has been frequently noted as a limitation on the utility of p 42. (The worked example on p 42 actually includes forced movement, but doesn't discuss how that gets factor into the adjudicative reasoning.)
The idea that it is impossible to give useful examples of adjudication in D&D play is absurd. The idea that it would make a DMG or Starter Set worse if it provided such examples is absurd.
Gygax's DMG is not a particularly good teaching book, but it contains many worked examples: of dungeon design; of treasure placement; of world-building including "supernatural" elements like other planes and worlds; of magic-item making; of combat; of adjudicating ad hoc modifiers to saving throws; of adjudicating PC interactions with doors (listening at them, opening them, searching for secret one); etc.
The 4e DMG, on p 42, has a worked example of adjudication. Subsequently, in the discussion of skill challenges, it has less-elaborately worked examples of adjudication. One thing that is missing from the 4e DMD is any discussion of how the imposition of non-damage effects (eg forced movement, conditions, and the like) should be factored into the adjudication framework, and this has been frequently noted as a limitation on the utility of p 42. (The worked example on p 42 actually includes forced movement, but doesn't discuss how that gets factor into the adjudicative reasoning.)
The idea that it is impossible to give useful examples of adjudication in D&D play is absurd. The idea that it would make a DMG or Starter Set worse if it provided such examples is absurd.