i disagree with some of what has been said. to me defensive tech is blocking,parry,covering and footwork. unless u have a clear escape path you normaly have to fight back. attacking techniques such as strikes, grabs,chokes,throws are essential. why wait to teach a student this, surely they are better off building a solid well balanced foundation to begin with. pre emptive striking can also be neessary at times.this does not mean i agree with starting fights as the person you refer to though Gok.
apologies too as i am using a t-hub to write this qnd it takes ages and wish i could type more but frustrating thing this touch pad is lol.