I'm referring strictly to these 1 day "women's self-defense" courses. Now I'm going to assume a majority of these classes are martial arts schools doing a promotional event for publicity, which could be the only logical explanation. The reason I question the effectiveness of these classes is because there is no way one is going to learn how to fight in one session. I understand the premise behind these are to help women who may be in a domestic violence situation or a random attack on the street. I'm sure there'll be one girl out of 50 whose life is saved because she learned to kick a guy in the nuts after he grabs her shoulder (as if one doesn't already have the common sense to do that). Some of the techniques they teach seem absurd. "If a guy grabs you by the collar do this 10 move combo" No one's gonna remember that in a day. Hell, I saw a video where a girl was underneath a guy who was mounted on top of her and they showed the girl doing some advance collar choke. Get real... It took me at least a month of steady practice to get competant at choking someone on top of me, you're telling me a woman in a panic is gonna calmly remember this technique from one class? Most of fighting is muscle memory and constant repetition. P.S. Why are these classes always to ward off a male attacker? Women can also attack other women, and lesbians have higher dv rates.