You spend decades building wealth. You plan carefully. You set up beneficiary designations, maybe a revocable trust. Then your son gets divorced, and half the inheritance you intended for your grandchildren goes to his ex-spouse.
This is not a hypothetical. It happens routinely, and it happens because most estate plans protect assets during the owner's lifetime but leave them completely vulnerable once they transfer to the next generation.
The Structural Gap
The vulnerability is structural. When your child inherits assets outright — whether through a will, a beneficiary designation, or a revocable trust distribution — those assets become theirs. Legally, completely, fully theirs. Which means those assets are now exposed to their creditors, their lawsuits, their divorce proceedings, and their financial mistakes. The protection you built around those assets disappears the moment ownership changes hands.
The Spendthrift Solution
An irrevocable trust with spendthrift provisions solves this differently. Instead of transferring assets outright to your children, the trust holds the assets for their benefit. Your children receive distributions from the trust — income, principal as needed, discretionary support — but the assets themselves remain inside the trust. They're not "owned" by your children in the legal sense that a creditor or ex-spouse can reach.
When your son gets divorced, his ex-spouse's attorney will look for marital assets. The trust's assets aren't marital property — they were never in his name. When your daughter faces a lawsuit, the plaintiff's attorney will search for assets to satisfy a judgment. Trust assets are beyond reach if the spendthrift clause is properly drafted.
Generation-Skipping Protection
Generation-skipping structures extend this protection further. Assets can pass from the trust directly to grandchildren, even great-grandchildren, without ever landing in an intermediate generation's personal estate. Each generation benefits from the trust. No generation owns the assets in a way that exposes them.
The irony is that this protection is well-established in law. Courts consistently uphold properly drafted spendthrift provisions. The mechanism is proven. But most estate plans don't include it — because most estate plans use revocable trusts that distribute assets outright upon the grantor's death.
The difference between "leaving an inheritance" and "building a generational structure" is this: one gives your children money. The other gives your grandchildren's grandchildren a foundation.