is kicking with the insteps that bad?
Today i was at a taekwondo school just waiting for my younger cousin to get off his training, my friend(idiot) was there arguing wit a black belt about tkd vs mt and they were in for some light sparring after class i surpose. It was going nice and friendly until the tkd threw a head kick into my friends guard and i heard a crack. looks like he injured his ankle a little bit.
I am just wondering is it really that bad kicking with the insteps since you injure your ankles if they block the instep of your feet or check your feet somehow?