Which basic need, as per Maslow's hierarchy, is rarely fully met?

Self-actualization is the highest level in Maslow's hierarchy of needs. It represents the realization of an individual's potential, self-fulfillment, and personal growth. This stage is rarely fully met for most individuals because self-actualization involves ongoing development and the pursuit of personal goals, creativity, and self-discovery. Unlike lower-level needs, such as physiological needs (which are necessary for survival), social needs (such as relationships), or esteem needs (such as respect and recognition), self-actualization is a continuous process of becoming and is never completely fulfilled. Individuals may reach certain milestones related to self-actualization, but the dynamic nature of personal aspirations means that there is always room for further growth and exploration, making it a challenging and evolving goal.