Carrying a switchblade knife for self-defense has some potential benefits, including:

1. Quick Accessibility: The spring-assisted mechanism of a switchblade knife allows for quick and easy deployment of the blade, which can be useful in self-defense situations.
2. Concealment: A switchblade knife can be smaller and more compact than other types of knives, making it easier to carry and conceal.
3. Ease of Use: The mechanism of a switchblade knife eliminates the need for manual blade deployment, making it easier to use, especially for those with limited hand strength.

However, it is important to note that carrying a switchblade knife for self-defense is not without risks. Knife attacks can be unpredictable, and even if the knife is used in self-defense, the attacker may still have a weapon. Also, the laws regarding carrying switchblade knives for self-defense vary by state and country, and in some areas, carrying such a knife can result in criminal charges.

It is also important to consider non-violent options for self-defense, such as pepper spray, a personal alarm, or self-defense classes. Before carrying a switchblade knife for self-defense, it is advisable to carefully consider the potential consequences and to familiarize oneself with local laws and regulations.