> Symptoms and/or behaviors that have persisted ≥ 6 months in ≥ 2 settings (e.g., school, home, church). Symptoms have negatively impacted academic, social, and/or occupational functioning. Inpatients aged < 17 years, ≥ 6 symptoms are necessary; in those aged ≥ 17 years, ≥ 5 symptoms are necessary.

Clearly these aren't saying "have they ever misplaced anything?" or "have they ever forgotten anything?". Sure, most people have had some of these things happen some of the time. Yeah, all kids find homework boring, but most kids are still able to do it. Most kids forget things, but aren't losing multiple coats every winter. Most people aren't experiencing these symptoms to such a degree that it significantly impacts their ability to function.