What the data actually shows
The relationship between parenthood and wellbeing is mixed and depends heavily on what you measure. A major review by Nelson, Kushlev and Lyubomirsky (2014, Psychological Bulletin) found that whether parents are happier than non-parents varies with circumstances — factors like age, financial security, partnership status, and the children's ages all shape it. There is no clean across-the-board finding that parents are happier or unhappier; the effect points in different directions for different groups.
One of the more consistent threads is a split between meaning and day-to-day mood — sometimes called the parenthood paradox. Parents frequently report higher senses of meaning and purpose than non-parents, while their moment-to-moment happiness is not reliably higher and can dip during the most demanding caregiving years. So 'is parenthood worth it?' depends partly on whether you are asking about meaning or about daily pleasantness; the research separates the two.
On regret specifically, surveys consistently find it is the minority position on both sides — though the exact figures vary by study, country, and how the question is asked, so they should be read as approximate. Most parents say they would choose parenthood again, and most child-free adults report being content with their choice. A meaningful minority on each side reports regret. The headline-grabbing 'I regret my kids' and 'I regret not having kids' stories are real, but they describe a minority, not the typical experience of either group.
Why this feels different from how it actually is
This decision feels uniquely high-stakes because it is large, often irreversible, and culturally loaded, which makes the fear of future regret loom much larger than the data on actual regret would warrant. People imagine a single correct answer and a lifetime of remorse for getting it wrong, when the evidence describes most people on both paths reporting contentment.
It also feels different because the loudest stories are the regretful ones. Accounts of regret — on either side — are striking, shareable, and emotionally vivid, so they are over-represented in what you hear and read. That visibility makes regret feel more common than the surveys suggest it is, in the same way that any dramatic minority experience can come to feel typical.
Finally, the meaning-versus-happiness split is easy to misread in advance. Prospective parents often picture daily joy and are surprised by the demanding years; prospective non-parents often weigh daily freedom and underweight meaning. Because the two measures can diverge, both paths can feel different from what was imagined — which is not the same as either being a mistake.
What the research says to do about it
Because the evidence is mixed and regret is the minority on both sides, the honest takeaway is that this is a values decision more than a data-optimisation problem — and the research is best used to set realistic expectations, not to pick the answer. Knowing that parenthood tends to add meaning more reliably than daily happiness, and that the demanding years are demanding for most people, can make whichever path you choose less surprising and less prone to feeling like a mistake.
The circumstances research highlights factors that consistently shape how parenthood feels: financial security, a supportive partnership, and adequate support all tend to be associated with a better parenting experience. To the extent these are within reach, they appear to matter more to wellbeing than the bare fact of having or not having children — which is a more actionable finding than the choice itself.
For people weighing the decision, the most defensible stance the data supports is to treat both paths as ones most people end up content with, and to make the choice on your own values rather than on a prediction of regret. The research simply does not license confident forecasts of remorse for either option.
What the research says does not help
Treating either choice as a guaranteed route to regret — or to fulfilment — does not match the evidence. Surveys find most people on both paths report being content, and the wellbeing research is mixed, so confident claims that you will regret having children, or regret not having them, are not supported by the data. Both framings overstate what is actually known.
Using vivid individual stories as a forecast for yourself is misleading. Regret accounts on either side are real and worth hearing, but they describe a minority and are amplified by how striking they are. Reading them as the typical outcome inflates the perceived likelihood of regret well beyond what the surveys show.
Expecting parenthood to deliver constant day-to-day happiness sets up an avoidable disappointment, because the more consistent finding is about meaning, not daily mood — with the hardest years often the least pleasant moment to moment. Equally, expecting a child-free life to feel like loss assumes a regret most child-free adults do not report. Both expectations are out of step with the research.
Real numbers in context
The numbers here should be read as approximate and contested, because regret figures vary by study, country, and wording. The consistent pattern across surveys is that outright regret is the minority position on both sides: most parents say they would choose parenthood again, and most child-free adults report contentment with their choice, while a meaningful minority on each side reports regret. No single precise percentage is reliable enough to quote as the answer.
On wellbeing, the more dependable finding is the split between meaning and daily mood. The Nelson, Kushlev and Lyubomirsky (2014) review found parents' happiness relative to non-parents depends on circumstances, while a more consistent thread is that parenthood tends to add meaning and purpose without reliably adding moment-to-moment happiness — and can lower it during the most demanding years. The trade-off, not a verdict, is what the data supports.