Jiu Jitsu training typically includes live sparring, called rolling
https://braziliangrappling151.valiantfield.com/posts/gracie-barra-vs.-typical-brazilian-jiu-jitsu-schools-which-is-right-for-you
Jiu Jitsu training often includes live sparring, called rolling, where pupils apply strategies in real-time versus resistant partners. This practice helps enhance timing, reflexes, and analytic skills, necessary for effective protection and competitors.