Even IJF has had some self-defence related events. To me the question is at what stage of judo career should one start self-defence training. Now it is set at somewhere after 5+ years when one is +20 years. From real world point of view I always added these with adult beginners. Things like;
- free others grip
- do koshi-waza if held
- avoid kick and do ashi-waza
are simple and can be integrated easily
The real problem in teaching realistic self defence is whether you are willing to hurt your attacker or not. For Kodokan Judo the part about hurting someone does not fit.
I am not sure if I am following you. Why would "self-defence training" need to wait until 5 years after one has started jûdô ? That rationale also seems to imply that jûdô itself is not self-defense ? I thought that jûdô WAS self-defense, in addition to physical and mental training. Why self-defense cannot be taught from day 1 I do not understand, and neither do I understand why someone would need to be ovr 20. In fact self-defense training can be started even before ukemi skills. I have taught jûdô self-defense to kids without any prior jûdô experience, for example in jûdô introduction seminar, and it works very good in kids from approx. age 8. Age 6 is often a bit too young. Kanô's chef d'oeuvre, Seiryoku zen'yô kokumin taiiku was intended literally as "jûdô for all" to be taught in schools to people of all level. It isn't exactly MMA, but it is a start. Movements from kime-shiki also work partiularly well; no throws, well controlled, basic, but the teaching goes further than the actual techniques. They are appropriate to teach kids from day one all about jû and how you deal in self-defense with an attacker in a gô way vs. a jû way. In addition, basic yet essential concepts such as tai-sabaki and use of the hara can be taught from day one.
Today we have many clubs that teach jûdô competition as a sport to white belt little kids, but one could not teach self-defense ? I find this an awkward evolution, just like I find it an awkward evolution that jûdô seems to imply the competitive sport, and that jûdô self-defense is something entirely different. I always taught that everything we do in jûdô is self-defense and that randori itself is training for self-defense, i.e. swift, correct application of jûdô techniques as reponse or in various opportunities