While both scenarios involve a question about the practical application of a concept or discipline in the real world, they are fundamentally different in nature.
Math in the Real World: When a student asks their teacher, "When will we use this in the real world?" in the context of math, they are seeking to understand the practical relevance and application of the mathematical concepts they are learning. Students often wonder how the abstract concepts they study in the classroom will be useful in their daily lives or future careers. Teachers may respond by providing real-world examples where math is applied, such as budgeting, cooking, shopping, engineering, science, technology, and various professions that involve problem-solving and quantitative skills.
Discipline and Grounding: On the other hand, when a child asks their parent, "In the real world, when will I use the discipline you give me by grounding me?" they are questioning the purpose and effectiveness of the disciplinary measures taken by their parents. Grounding is a form of punishment that restricts a child's privileges or activities as a consequence for their behavior. The child may be seeking to understand how discipline relates to their actions and how it will impact their behavior and decision-making as they grow older.
The common thread between the two scenarios is that they involve questioning the practicality or relevance of something in the real world. However, the specific context and subject matter being questioned are distinct: one related to the usefulness of math concepts, and the other related to the effectiveness of parental discipline.