Emotional regulation in the form of self-soothing happens pretty quickly. Like 3-9 months, commonly. I think more importantly, the GP was using the most negati

Emotional regulation in the form of self-soothing happens pretty quickly. Like 3-9 months, commonly. I think more importantly, the GP was using the most negative possible interpretation of what, to me, sounds like a pretty healthy and self-aware approach to the new (to the author) phenomenon of tantrums.