Role Priorities/Overrides

There needs to be a way to select a priority role that overrides the others. For example, I have nsfw role to see nsfw channels, but I have an under 18 role so that they can’t see even if they pick nsfw role. But since I have nsfw role set to see, no matter what role I give that says turn it off, it gets overridden by the nsfw on. Hope this makes sense.