The trusts and the documents matter. But they are not what decides whether your wealth survives the people who inherit it. The conversation does, and the right time to start it is earlier than most families expect.
Most families treat wealth planning as a set of documents. The trust, the will, the buy-sell agreement, the beneficiary forms. Those matter. But the paperwork is not what determines whether your money outlasts the people who inherit it. The conversation does, and most families wait far too long to have it.
There is a number that gets repeated often enough in this field that it is worth understanding rather than just quoting. A two-decade study by the Williams Group, following thousands of families, found that roughly 70 percent of wealthy families lose their wealth by the second generation, and about 90 percent by the third.
Sit with that for a moment. The wealth was not lost to a recession or a bad bond trade. It was lost because nobody talked about it until it was too late. That is the part you can actually do something about, and it is the part most families ignore until a death or a diagnosis forces the issue.
The families most exposed are not the ones you would guess
It is easy to assume this is a problem for dynasties with family offices and full-time staff. It is not. The families most exposed are often the ones who built real wealth in a single generation: the business owner, the surgeon, the couple who saved and invested with discipline and now have far more than they ever expected to. They have the assets. What they often lack is a plan for the human side of the transfer. The assumption is that the children will simply figure it out the way the parents did. They usually do not, because they did not live through the years that built the discipline.
Why earlier is better than you think
Children form their attitudes about money far earlier than parents expect. By around age seven, a child’s basic instincts about spending, saving, and whether “there is always more” are already taking shape. They are also reading you whether you talk to them or not. A child notices the house, the cars, the vacations, and draws conclusions on their own. Silence does not protect them from those conclusions. It just leaves them to reach the wrong ones without your guidance.
There is also a practical reason to start early that catches parents off guard. In many states, once a child reaches the age of majority, they are legally entitled to learn about trusts that hold assets for them, including balances. If the first time your child hears about family wealth is in a letter from a trustee, you have already lost the chance to shape how they understand it.
The two opposite mistakes
Parents tend to fear one mistake and commit the other. The feared mistake is telling too much too soon: a child who learns the size of a future inheritance and quietly builds a life around it, reduces effort, chooses a career around the cushion rather than the work, and grows a sense of entitlement that strains the family. That fear is real, and it is why so many parents say nothing at all.
But silence is its own mistake. An heir who learns nothing arrives unprepared, gets blindsided by structures they do not understand, and makes avoidable errors with money they were never taught to steward. The answer is not a dollar figure. It is a series of conversations that start with values and grow in detail as your children grow in maturity.
What to share, and when
You do not owe your children a balance sheet. You owe them context, in age-appropriate layers.
This is what family governance actually means
A family that talks openly about money learns to solve problems together, removes the uncertainty around expectations, and is far less likely to fracture when the assets actually change hands. The documents protect the wealth. The conversation protects the family. You need both, and the conversation has to come first.
Source for the figures cited: Roy Williams and Vic Preisser, Preparing Heirs (2003), The Williams Group.
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