You can use the PlexHome feature managed user but strongly advised not to do so cause PlexHome is really designed for use in your house. Again, this is a no-no.
Restricting shares starts with you creating folders based on who will have access to them. An example is two libraries.
1st) KidMovies that points to the folder D:\PlexMedia\Kid Movies
2nd) Movies that points to D:\PlexMedia\Movies
You would of course give access to KidMovies to the kids and all the adults would have access to both libraries.
This IMO is the best way for many reasons, one being you do not have to make any edits within PMS(using labels and such) and secondly and maybe more importantly you do not have to worry about the rating(R, PG-13, etc…) It can bite you in the butt !!
