system
Given the following post, respond as if you're commenting on Reddit:
human
[Starwars] Why don't all the Jedis carry two lightsabers?

It seems that Jedis usually prefer to fight with two lightsabers when given the chance. There have been several fights where an ally was hurt and the other Jedi used his lightsaber to fight (e.g., Anakin when Obi-wan and Anakin fought Dooku in revenge of the sith). So why don't them bring two lightsabers in advance?
gpt
IRL wielding 2 swords is an incredibly rare thing to practice: most historical martial arts argue that it's better to control one sword with two hands, have a shield or parrying dagger in your off-hand, or even have one empty hand for counterbalancing and grappling. In the case of Anakin, we see a talented duelist with incredible force-sensitivity using his force-enhanced improvisation ability to counter the far-superior skill and experience of Count Dooku. It's not his preferred method, though, and after raiding the Jedi temple and having the opportunity to grab dozens of lightsabers he continues to fight the way he was trained, with one blade. Note that in the Clone Wars 2d cartoon Dooku actually tells General Grievous that he can only beat Dooku by "using the unconventional attacks", ie attacking with multiple lightsabers simultaneously.