drop bear
Sr. Grandmaster
For example, say I have a fifty year old professional woman come to me to learn self defence. For a start she is going to expect to learn how to defend herself if threatened or attacked. She doesn't want to learn to fight someone in the ring. If she did I would send her to one of my mates who trains people to fight in the ring. Sure we will pressure test her but in a more appropriate way for the training she is receiving.
I have not been factoring in personal choice. You can do as much or as little as you want. But the results will vary because of it.
If I don't practice knife fighting I am unlikely to be good at it.