Kids & Money

Real Cost: Model the Monthly Shape, Not the Total

The Real Cost of a Child

Mechanism. The USDA's last report (published 2017, for a child born in 2015) estimated roughly $233,600 to raise one child to 17 in a middle-income two-parent household, college excluded; Brookings updated it for inflation to about $310,000. The total misleads three ways: ① the largest line is housing (roughly 30%) and food—not toys or activities; ② childcare is concentrated in the first five years, precisely when career earnings are lowest; ③ the priciest item isn't in the statistics at all—data across many countries show one parent's earnings (most often the mother's) decline for years after a birth, eating both current wages and decades of retirement compounding.

These are statistical averages; regional spread is enormous—full-time infant care in a major metro can run two to three times the average. It's a reference point, not a budget.

Actionable. Price local childcare before deciding your return-to-work pace; use your employer's Dependent Care FSA (pre-tax dollars for childcare; the cap is whatever the IRS publishes for the year); and cost out "a few years of reduced work" in retirement compounding, not just that year's salary. Judge the impact by your savings rate—the share of income not spent and actually invested, not a bank balance.

Education Money: 529s and the Alternatives

Funding Education

Mechanism. A 529: after-tax dollars in, tax-free growth, tax-free withdrawals for qualified education expenses, and in most states a state income-tax deduction or credit on top. Qualified expenses cover tuition, required fees, books, and room and board at least half-time; federally they also include up to $10,000/year of K-12 tuition. Non-qualified withdrawals: earnings taxed as ordinary income plus a 10% penalty (a scholarship waives the penalty, not the tax). Two underrated flexibilities: the beneficiary can be changed to another family member (including yourself); and since SECURE 2.0, once conditions like a 15-year-old account are met, up to $35,000 lifetime can roll into the beneficiary's Roth IRA.

Reference points: 2024–25 published prices ran about $25,000/year for in-state public four-year tuition plus room and board and roughly $60,000 at private nonprofits (College Board basis); published price is not what's paid—net price after grants and scholarships is usually meaningfully lower. Since FAFSA simplification, distributions from a grandparent-owned 529 no longer count as student income—that old trap is gone.

Actionable. In sequence, education money comes after the emergency fund, the employer 401(k) match, and your own tax-advantaged accounts (Day 3 / Day 8). The reason isn't sentiment, it's borrowability: college has loans, grants, and state schools; retirement has no loan.

US–China contrast: China has no 529-style tax-free growth account; the personal income tax offers only the children's-education special deduction (RMB 2,000 per child per month, split between parents or claimed in full by one).

Money Sense Is Practiced, Not Lectured

Teaching Kids About Money

Mechanism. A 2013 Cambridge review for the UK government (Whitebread & Bingham) found that basic money habits are largely formed by around age seven; explaining principles after that works poorly. And the strongest signal at home isn't what you say—it's what the child watches you do: how money gets discussed, whether anyone has ever waited for something. (In the 2018 large-sample replication by Watts and colleagues, the marshmallow test's predictive power shrank sharply once family background was controlled for—don't read it as destiny.)

Actionable. Four moves, by age:

• Decouple allowance from chores. Chores are what family members owe the household; allowance is a practice tool (Ron Lieber's position in The Opposite of Spoiled). Keep the amount small enough that mistakes don't hurt, and the timing fixed.
• Three jars: spend / save / give. Add a family match on the "save" jar—a dollar for a dollar. It's their first felt intuition for a 401(k) employer match.
• Make them wait. Write the want down; buy it in two weeks if it survives.
• Open a custodial Roth IRA once they earn. The cap is the lesser of that year's earned income and the annual IRA limit.

Inheritance vs Self-Reliance: Give Options, Not an Exit

Inheritance vs Self-Reliance

Mechanism. Buffett's line is widely quoted: enough money that they feel they could do anything, but not so much that they could do nothing. It's more than an aphorism—the 1993 Holtz-Eakin, Joulfaian and Rosen study known as the "Carnegie conjecture" found that people inheriting over $150,000 left the labor force at roughly four times the rate of those inheriting under $25,000. What corrodes is the unconditional, unrestricted, unscheduled lump sum—not money itself.

Actionable. Separate three kinds of giving:

• Obstacle-clearing (tuition, medical bills, part of a down payment): removes a structural barrier; highest return.
• Platform (startup capital, help with childcare): conditional, discussed, still requires their effort.
• Unconditional living expenses: the fastest route to dependency and the hardest to unwind.

Then use structure rather than a number: staged distributions (say at 25 / 30 / 35), use restrictions, and matching provisions (they earn a dollar, the trust adds one) all outperform "how much, all at once." Instrument details are Day 20.

Two things to do now that have nothing to do with the amount: name a guardian for minor children in your will, and audit every beneficiary designation on retirement accounts and policies—designations override the will, and forgetting to update them is the single most common failure here. On gifting, the US allows an annual exclusion per donor per recipient (recently in the $19,000 range, indexed each year), and a 529 can front-load five years at once; paying tuition or medical bills directly to the institution doesn't use the exclusion at all.