Yeah, we break bones and kill when necessary when triinang tkd. There are other sub arts other than tkd such as: hapkido, kuk sool won and Ssireum(wrestling/ground fighting)than that stem from Korea and not just Taekwondo. I’m a kukkiwon certified 4th Dan in Taekwondo and I utilize what works and what doesn’t. My dojang uses weapons that work and cause great damage and not just ko’s.