We are critical thinkers as nurses. If we can differentiate between the sick and not sick...We can differentiate between scolding and abusing.
Per OP, the resident made unwarranted contact...the Healthcare provider responded... Not elder abuse.
CNA made unwarranted contact that causes temporary or permanent injury (psychological, emotional, physical)... Elder abuse.
Public layperson makes unwarranted contact... Assault...
Public layperson makes unwarranted contact... 2nd party responded with force... Self-defense.
If I reported every parent that walks through my ER who scolded their kid because they aren't behaving (ie running in/out the exam room or destroying the ER) there would be PIs everywhere.
Now if a parent was scolding a child acting ordinary or if said child is behaving ordinary to their milestone but is overtly withdrawn.... Then yes I'd report it IF I suspect abuse.