Will AJ Bronkhorst sit independently (without support) by January 15, 2026?

Context: AJ is currently 4 months old (as of December 3, 2025). The typical developmental milestone for independent sitting is between 6-9 months of age, with an average around 6 months. The family expects AJ to reach this milestone earlier than average.

Resolution Criteria: This market resolves YES if AJ can sit upright without any support (hands, pillows, or other assistance) for a sustained period, as confirmed by the market creator. This is based on standard pediatric developmental milestone definitions from sources like Pampers and Healthline.

Sources:

• https://www.pampers.com/en-us/baby/development/article/when-do-babies-sit-up

• https://www.healthline.com/health/parenting/when-can-babies-sit-up

  Resolution Criteria

  This market resolves YES if AJ can sit upright without any support (hands, pillows, or other assistance) for a sustained period by January 15, 2026, as confirmed by the market creator. Resolution is based on standard pediatric developmental milestone definitions.

  Background

  AJ is currently 4 months old (as of December 3, 2025). The typical developmental milestone for independent sitting occurs between 6-9 months of age, with an average around 6 months. The family expects AJ to reach this milestone earlier than average, making the January 15 deadline approximately 6.5 months from now.

  Resolution Criteria

  This market resolves YES if AJ can sit upright without any support (hands, pillows, or other assistance) for a sustained period by January 15, 2026, as confirmed by the market creator. Resolution is based on standard pediatric developmental milestone definitions from sources like Pampers and Healthline.

  Background

  AJ is currently 4 months old (as of December 3, 2025). The typical developmental milestone for independent sitting occurs between 6-9 months of age, with an average around 6 months. By January 15, 2026, AJ will be approximately 6.5 months old.