Which of the following does Adler consider essential for personal development?

Adler emphasizes the significance of social connection and support as a fundamental aspect of personal development. He believes that humans are inherently social beings, and our interactions with others play a critical role in shaping our personalities and experiences. In Adlerian psychology, the concept of social interest is vital; it refers to the idea that individuals must develop a sense of community and foster connections with others to achieve a sense of belonging and fulfillment. This social engagement not only aids in overcoming feelings of inferiority but also enhances overall well-being and drive towards collective goals.

The other options do not align with Adler's principles. Avoiding intimate relationships runs counter to the belief in fostering connections, while focusing solely on individual success neglects the importance of community and collaboration. Strict adherence to family traditions can inhibit personal growth and the development of one's own identity, which Adler encourages individuals to explore and cultivate in relation to their social environment. Thus, social connection and support are indeed essential for personal development according to Adler.