Is there a condition for a person who doesn't mature?

Yes, there are various psychological conditions and developmental issues that can lead to a lack of emotional or social maturity in individuals. Conditions such as Autism Spectrum Disorder (ASD), Attention-Deficit/Hyperactivity Disorder (ADHD), and certain personality disorders can impact a person's ability to mature in typical ways. Additionally, environmental factors, such as trauma or unhealthy family dynamics, can also hinder emotional development. It's important to approach such situations with understanding and support.