What does the childhood years cost over 40 years?
The Childhood Years
4 hours daily until 18, then 3 visits a year for 40 years — the long-term cost is 87%.
How the number's built.
The days of parenting feel long, filled with school runs and chores. The years go fast. By the time they leave for college or their own life, the vast majority of our face-to-face hours with them are already complete. We spend the rest of our lives in the tail end of the distribution.
One phone-free hour of attention daily.
6,600 hours of undivided presence reclaimed.
No rush. It keeps until you want it.
dedicate 1 hour of fully focused attention daily during childhood
1 hour / day × 365 days / year × 18 years = 6,570 hours (rounded to 6,600) reclaimed
childhood contact: 4 hours / day × 365 days / year × 18 years = 26,280 hours
adulthood contact: 3 visits / year × 4 days × 8 waking hours × 40 years = 3,840 hours
total contact: 30,120 hours
percentage complete by age 18: 26,280 ÷ 30,120 = 87%
Assumptions
- Childhood cohabitation lasts 18 years with an average of 4 hours daily of direct contact.
- Adulthood contact spans 40 years with 3 visits annually, lasting 4 days each, at 8 waking hours daily.
- Total lifetime hours are the sum of childhood and adulthood contact hours.
- Recovery assumes dedicating 1 hour of fully focused, phone-free attention daily during childhood.
The cost of the hours left with our children
Last reviewed: May 2026.
An estimate built for reflection — not financial, medical, or legal advice. The figures follow the assumptions above.