An account the children may use
Most request tools know two states: may request, or may not. For a family that is too coarse. Nexview can give an account an age limit — and anything above it never appears in the first place.
One number, and the catalogue changes
On the account you tick age restricted and enter an age. From then on Nexview shows that account only what is rated for that age or below — in the catalogue, in search, in recommendations, in the calendar and on every detail page.
It is not a filter you can click away, and not a warning before opening. For this account the titles simply do not exist. Even a hand-made request bypassing the interface does not get to see them — the check sits in the server, not the browser.
Governing country decides whose rating applies — in Germany the FSK. If a title has no rating for the chosen country, the strictest available one applies.
What about titles with no rating?
A large part of the catalogue carries no age rating at all: roughly a third of films and a good four tenths of shows. What happens to them is your call — and both answers have a price.
Hiding them is the recommendation: then nothing unsuitable can slip through. The price is a noticeably emptier “discover”, because new titles usually carry no rating yet.
Showing them keeps the catalogue alive but lets through titles whose content is unknown. Nexview says so plainly at that spot rather than hiding the decision behind a switch.
The limit of the limit
This has to be said plainly: the age limit works inside Nexview only. Anybody opening the same media server directly through Plex sees everything on it — Nexview has no influence over other interfaces.
The folder on the disk stays what it is, too. What Nexview prevents is discovering and requesting unsuitable titles — not access to a library that stands open anyway.
For the usual case that is enough: the child uses Nexview to search and request, and the media server has its own account restrictions. Combine both and you have workable protection. Rely on Nexview alone and you do not.