Whisper:
How is it that every template doesn't have combat reflexes as an option?
Combat Reflexes tend to show up on Templates that have
seen combat. One on one bouts aren't 'combat'. What GURPS authors tend to call combat are 'life and death fights facing multiple combatants'. Survive (or train to specifically survive) a few of those and they figure you should have Combat Reflexes.
So Combat Reflexes shows up on the Assassin, Instructor, Crimefighter, and Warrior* and Templates, because those are martial artists that should have seen 'combat'. You'll also see it on certian Style's Optional Advantages list, because those are 'no holds bared' styles where students are trained in the meat grinder. For example Aikijutsu, Aramatura, Kachin Bando just to name the first three I came across. Where as Styles that train with one on one bouts or only in 'the safety of the dojo', like Boxing, Capoeira, and Chin Na do not offer Combat Reflexes as an Optional trait.
* I contemplated taking Warrior just for Combat Reflexes. But the Stat line of Contender was better and this being one on one bouts meant Combat Reflexes really wasn't as valuable.