Child development expert Siggie Cohen, drawing on direct work with more than 5,000 children and their families, has identified a single communication mistake she says parents make every day — and warns it consistently backfires. Her top parenting rule, she argues, is "surprisingly simple" and widely overlooked.
One Pattern Repeated Across 5,000 Cases
Cohen's assessment is not based on a narrow sample. More than 5,000 families form the foundation from which she has drawn her conclusion that one specific communication error is both common and counterproductive. The mistake she identifies is a daily behavior, not an occasional lapse — meaning, by her account, most parents are repeating it regularly without recognizing the cost.
The consequence she emphasizes is backfiring: the approach produces results opposite to what parents intend. That framing — not merely "unhelpful" but actively working against the parent's stated goal — is central to how Cohen presents the stakes of correcting it.
Questions as a Parenting Tool
Cohen's framework places significant weight on how parents use questions. Using questions more effectively is one of the two main pillars of her guidance, and she frames it as a learnable skill rather than an innate trait. The "surprisingly simple" characterization points to accessibility — the fix does not require specialized training to apply.
Her approach implies that parents who default to directives or commands may be bypassing an alternative mode of communication that works better in many situations. The source does not specify which question types or formats she recommends.
When to Draw a Hard Line
Questions are not Cohen's answer to every parenting moment. She distinguishes clearly between situations suited to open-ended communication and those that call for firm, unambiguous limits. Knowing when to set those limits — and when not to — is the second pillar of her guidance.
This two-track framework, grounded in more than 5,000 direct cases, is what Cohen presents as her No. 1 rule: a practical distinction between when to ask and when to tell that she says parents consistently miss.