The song "Always a 28-year-old girl" is a popular track that resonates with many listeners, particularly those who can relate to the themes of aging, self-discovery, and the complexities of life. This song has gained significant popularity due to its relatable lyrics and catchy melody, making it a staple in various music charts and playlists.

The song's popularity can be attributed to several factors. Firstly, the lyrics are thought-provoking and introspective, delving into the emotional journey of a woman who is navigating the challenges and milestones of her late twenties. This resonates with a wide audience who may be going through similar experiences. According to a study by the Pew Research Center, individuals in their late twenties often face significant life transitions, including career changes, personal relationships, and self-discovery, making the song's themes particularly relevant.

Additionally, the song's production quality and the artist's vocal performance have contributed to its success. The music video, which visually captures the essence of the song's message, has also played a role in its widespread appeal. Data from YouTube shows that the music video has accumulated millions of views, further solidifying the song's status as a fan favorite.

Furthermore, the song's catchy melody and memorable hooks have made it a staple in various music genres, appealing to a diverse audience. This versatility has allowed the song to maintain its relevance over time, as it continues to be featured in radio playlists and music festivals.

In conclusion, "Always a 28-year-old girl" has become a popular song due to its relatable lyrics, thought-provoking themes, and catchy melody. The song's success can be attributed to its ability to resonate with a wide audience who can relate to the experiences of aging and self-discovery, as well as its high production quality and widespread appeal across various music genres.