There could be several reasons why some older people may engage in rambling conversations even when the other person is not interested in the topic:
Memory and nostalgia: As people age, they often experience a decline in memory and cognitive functions. Recalling memories and stories from the past can be a way for them to connect with their own history and experiences, providing a sense of comfort and familiarity.
Need for social interaction: Loneliness is a common issue among older adults, especially if they have lost friends or loved ones. Engaging in long conversations, even if one-sided, might be an attempt to combat feelings of isolation and maintain social connections.
Sense of purpose and significance: Older individuals may feel a desire to impart their wisdom or life experiences to younger generations, believing that they have valuable insights to share.
Communication skills and generational differences: Some older adults may not be adept at gauging social cues or recognizing disinterest. They might not be familiar with modern conversational norms and etiquette.
Decline in filtering ability: With age, individuals may lose their ability to filter or prioritize information. This can result in rambling or getting sidetracked during conversations.
Coping mechanism for anxiety or stress: Engaging in lengthy monologues might be a way for older individuals to cope with feelings of anxiety, stress, or even insecurity about their communication abilities.
Medical conditions: Certain medical conditions, such as dementia or Alzheimer's disease, can affect an individual's communication and cognitive abilities, leading to repetitive or tangential conversations.
It's essential to approach such situations with empathy and patience. Even if the topic is not of interest to you, showing understanding and listening attentively can be a source of comfort and validation for the older person. Redirecting the conversation gently or politely excusing yourself if necessary can also be helpful strategies. Additionally, if you notice any signs of cognitive decline or memory issues, it might be wise to encourage the individual to consult a healthcare professional for evaluation and support.