In modern times, katanas are primarily used for ceremonial purposes, martial arts training, historical reenactments, and as collectible items. They are no longer used as weapons in the context of warfare or self-defense.

In Japan, the art of traditional swordmaking and the practice of swordsmanship, known as iaido or kendo, are still maintained and valued. Many people continue to train in these disciplines and appreciate the cultural and historical significance of the katana.

However, it's important to note that the practical use of katanas as weapons in contemporary society is extremely rare. Modern warfare and self-defense practices have evolved, and firearms and other advanced weaponry have largely replaced traditional bladed weapons.

While katanas are not actively used in combat today, they hold a deep cultural and historical significance in Japan and are highly regarded as symbols of the samurai warrior class and traditional craftsmanship.

If you have an interest in katanas or Japanese swordsmanship, it is possible to study and practice the art forms associated with these weapons through martial arts schools, cultural organizations, or specialized training centers. These activities focus on preserving the traditions and techniques of Japanese swordsmanship as well as promoting personal development and appreciation for the martial arts.

Always prioritize safety and follow the laws and regulations of your jurisdiction when handling or using any weapon.