I only tried the Lite version briefly, but it seems it doesn't respect the Maximum allowed parental rating as seting in the Jellyfin.When logged into Jellyfin with the kids username, which is restricted to PG/TV-PG rating, it still shows all movies and shows in the library and it also plays all those movies/shows. Part of this might be Jellyfin fault as it should even provide information to connect to those. However, this feature works as expected under Kodi with Jellyfin add-on.