Generally, no, the thigh is not considered a private part.
Understanding "Private Parts"
The term "private parts" typically refers to the intimate areas of the body directly associated with reproduction and elimination. Commonly included are the genitals, anus, and perineum. While the definition can be somewhat subjective and vary depending on cultural norms and individual perspectives, the pubic area and sometimes nipples or breasts might also be included. Importantly, this commonly accepted definition does not typically include the thighs or hips. [Source: Information provided - 11-May-2018]
This means that while exposure of the thighs might be considered inappropriate in certain contexts (depending on cultural norms and the specific situation), it's not generally categorized in the same way as the truly private parts of the body.
Context Matters
It's crucial to understand that the appropriateness of exposing any body part, including the thighs, is highly dependent on the context. What might be acceptable in one situation (e.g., wearing shorts at the beach) might be inappropriate in another (e.g., at a formal event). Social norms and cultural expectations play a significant role in determining what is considered acceptable exposure.