Step 1: Understanding the Concept:
The primary functions of clothing are to provide protection, modesty, and adornment. The question asks to identify what clothing does not protect us from among the given options.
Step 2: Detailed Explanation:
- Weather: Clothes protect us from adverse weather conditions such as cold (sweaters, jackets), heat (light cottons), and rain (raincoats).
- Insect: Clothing, especially long-sleeved garments, can provide a physical barrier against insect bites.
- Dust: Clothes cover our skin, protecting it from dust and dirt.
- Enemy: Standard everyday clothing offers no meaningful protection against a human adversary or enemy in a physical confrontation. Specialized protective gear like body armor is required for such situations, which is not what is generally meant by "clothes".
Step 3: Final Answer:
Clothes protect us from weather, insects, and dust, but not from an enemy.