Will my succession plan keep controlling my kids long after I'm gone?

Only if you build it that way. Kris Kluver, in The Dysfunctional Family Office, draws a sharp line between a Founder's Mandate and what he calls Ruling from the Grave. Ruling from the Grave shows up as rigid trusts, restrictive governance, and structures designed to control outcomes for decades after the founder's death. The intention is usually protection. The effect is usually suppression. The Mandate is the opposite. It clarifies intention without binding outcomes. It sets the table for conversation while explicitly leaving the family room to adapt. The test is whether the document closes off future possibilities or opens them up. If you find yourself drafting language that controls behavior decades out, you're building Ruling from the Grave, not a Mandate.