Based on the song "Solos: How Many Old Friends Do You Have," the number of old friends is not explicitly stated in the lyrics. The song focuses on the theme of solitude and the fading of friendships over time, rather than providing a specific count of old friends. The lyrics suggest that the number of old friends may be dwindling, but it does not give a precise figure.

The reason for the absence of a specific number in the song is likely due to the broader message it conveys. The song explores the natural progression of relationships, where some friends may drift apart while others remain steadfast. This narrative is more about the emotional impact of losing touch with old friends rather than quantifying the number of such friendships.

Data from various studies support the idea that the number of close friendships tends to decrease with age. A study published in the Journal of Health and Social Behavior found that the average number of close friends decreases from around 50 in early adulthood to around 25 in middle age. This decline is attributed to factors such as changes in lifestyle, geographic mobility, and the natural ebb and flow of social networks over time. The song "Solos: How Many Old Friends Do You Have" reflects this trend by not providing a specific number but rather emphasizing the emotional significance of the remaining friendships.