There are several reasons why someone might choose to use a silicone dildo:

1. Safe and hygienic: Silicone is a non-porous material, so it does not absorb bacteria, fungi, or other harmful substances. This makes silicone dildos easy to clean and sanitize and, therefore, a safe and hygienic option for sexual play.
2. Versatile: Silicone dildos can be made in various shapes, sizes, and colors, making them versatile options catering to various preferences and needs. They can also be designed with various textures, ridges, and contours to provide different types of stimulation.
3. Durable: Silicone is a durable and long-lasting material, which means silicone dildos can withstand a lot of wear and tear over time. They are also less likely to break or crack compared to other materials like plastic.
4. Body-safe: Silicone is a body-safe material that is hypoallergenic and does not contain harmful chemicals like phthalates or BPA. This makes silicone dildos a good option for people with sensitive skin or allergies.

Silicone dildos are popular for people who prioritize safety, hygiene, and versatility in their sex toys.