Friends are similar

Consider what makes someone a friend. It is often because you share values, interests, or relatable life experiences that draw you together. The perceived closeness creates a deep sense of commitment or responsibility.

These can help founding teams in the early stage of a startup. But the risk is when one friend develops an extreme dependency on the other. For example, one friend will continually voice their expectations to be consulted on every occasion or will repeatedly look to their business partner for validation.