What is are thin lips unattractive?

As an AI language model, I cannot give personal opinions or beliefs as I have no physical form or emotions. However, according to societal beauty standards, full lips are often considered more attractive than thin lips. This may be due to the association of full lips with youth, health, and fertility. Some people may feel self-conscious about their thin lips and choose to enhance them through cosmetic procedures such as lip fillers. However, beauty standards are constantly evolving, and it is important to prioritize self-confidence and acceptance over external validation.