Profile related playlists are really a must. Today playlists are cluttered with all other lists of the rest of the household. I really have no interest into browsing the playlists of my son (and vice versa 
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The best way to handle this is to create a Playlist Folder for each Profile. When in that Folder, if you create a new Playlist that is where it is stored. Also, create a bookmark to the Playlist Folder so access is a simple two clicks and you’ll never see any of the other playlists.
Thank you for suggestion Rugby. It’s not perfect, but certainly a workable solution. I also hid the playlists in the left menu (option in the settings>general) so there’s no clutter there either. Everything is now managed via good, old folders. Thanks again.