When a girl should start shaving her legs is a personal decision and varies from person to person. Some girls may start shaving their legs as early as 8 or 9 years old, while others may wait until they are in their teens. It is important to note that shaving can cause skin irritation, razor burn, and ingrown hairs, so it is essential to use proper shaving techniques and products to minimize these risks. When starting to shave, it is recommended to use a sharp razor, shave in the direction of hair growth, and use shaving cream or gel to help the razor glide smoothly over the skin. It is also important to moisturize the skin after shaving to prevent dryness and irritation. When choosing shaving products, it is recommended to look for those with hydrating and soothing ingredients like aloe vera, shea butter, and colloidal oatmeal, and to avoid products with fragrances that can cause skin allergies.