It will be a hard sell based purely on its own merits.
Fortunately, we're not trying to convince him based on merit. We want this to be our reward for solving all of Leaf's metal problems permanently (and allowing it to inflict truly devastating economic warfare on the other Villages while conventional warfare is bound by AMITY) and we're just giving him a plausible reason to allow it.
Finally, we have a chance to make FOOM an actual protected Clan Secret.
Also whatever the next thing we revolutionize is. And the thing after that. And after that.
Asuma's pretty cool… but I'd rather trade him these awesome things for Leaf instead of being forced to give them and hoping he rewards us. We have a duty to our clan as well.
Can you tell I'm still pissed Hiruzen forced us to explain SkyTowers to him ("Seal of the Decade" by his own admission) and then gave us table scraps in exchange?
Actually, why stop there? If we're tweaking the Clan Secret system, let's also give clans the
option to share secrets with a nonclanmember without forfeiting the secrets' legal protections.
As is, if a single non-clan member knows something, it instantly loses its status as a Clan Secret and becomes
a lot harder to protect.
Now suppose we change that slightly, and allow clans to
voluntarily make an agreement with specific trusted individuals
if and only if they desire to, where the outclan individual can learn the secret without the clan losing their legal protection.
This will almost certainly be a rare occurrence because it requires a great deal of trust. Maybe we can figure out some sort of Tower enforcement mechanism to never share on pain of death (etc.) that reduces that, but it will never go away entirely.
As seen below, it keeps fully in line with the "purpose" of clan secrets. The clans shouldn't have a problem with it, as doing this is completely optional (even if most of them would never do it). Asuma would love it, as it allows more of his stronger shinobi to learn additional powerful techniques in the rare cases it's used.
So why go through all the trouble? Because this way we can equip TenTen with our good seals without being forced to give them to
everyone. Because this way, Ino can teach Hazō a resolve boosting technique that might save his life from the Dragons (assuming they enter some contract in advance, etc.),
without costing giving up the ability to the wider community if anyone sees Hazō use it.
All it does is lower the cost of extending trust to those you care about.
The Clan Council is made up of the heads of every recognized Leaf clan. The specific legal benefits of being a clan revolve around a) a position in this body, to ensure that any concerns you have are heard by the Hokage, and b) the right to withhold information (e.g. about bloodlines, jutsu, and seals) from Leaf's government under laws governing clan secrets. Unless an innovation is claimed as such, those who developed it are expected to make it available to the broader community in exchange for reasonable compensation.
- So, when Jiraiya / Keiko / Noburi say that clans won't want their privileges 'diluted', what they mean is that they don't want other people taking up the Kage's time and attention, and that they don't want other people to be able to withhold innovations that they / they broader community might make use of (and which might give the innovator some competitive advantage). There are also issues of deeply embedded traditions and ideas about nobility over which clans might oppose the formation of a new clan full of ex-missing nin, but those are more PR and less pragmatism.
