Choose the household arrangement before copying everything
Imagine two people using the same local film collection but wanting different Kodi layouts. A second profile can provide its own interface settings without requiring another copy of the video files. The official profile manual offers separate choices for media information and media sources. Write down whether the new profile should inherit the existing library or begin with its own information before accepting the initial copy prompts.
Read both sharing controls
Media info governs the stored library information; Media sources governs the locations available to the profile. Each has separate, shared and restricted choices in the documented editor. For a shared collection that should not be casually reorganised, review the read-only option rather than assuming that a different avatar prevents edits. Conversely, separate source settings are useful when a profile should start from a different set of folders. Check both controls after loading the new profile.
Keep profile convenience separate from protection
Kodi explicitly warns that profiles are not a security feature. Access through another interface or the underlying filesystem can defeat assumptions based on a profile lock. Use the operating system and storage permissions for sensitive material. In a simple check, load each profile and compare its visible source list and one harmless library entry. That establishes the chosen organisation without treating a successful profile switch as evidence that private files are encrypted or isolated.
Questions, answered
Does a new Kodi profile necessarily need duplicate video files?
No. Profile media information and source settings can be shared or separate; choose the intended arrangement explicitly.