To Adopt Or Not To Adopt?

[Naughtius Maximus]

Is there any particular reason not to adopt a general into your family? I am playing a campaign as the Tokugawa and adopted two generals into my family, marrying one of them to a daughter of a minor clan that I need to ally with as they are a buffer state. Not particularly sure if there is a benefit to leaving generals out of the family or not.

I am wondering whether if my general might revolt if his in-laws decided to betray me or not...

That would be interesting if that was the case.