The Saiyans are the most naturally strong species in the Dragon Ball series, but fans have wondered why Goku and Vegeta are often shown training so much.
But this need for training even extends to their roots as Saiyans often need training in truly get stronger, though that power only seems to extend to certain members of the race.
Actually this training question is interesting too: pic.twitter.com/jvf3lxzQBn— Todd Blankenship (@Herms98) December 1, 2017
In a Q&A published in Shueisha's Weekly Shonen Jump, series creator Akira Toriyama dished on a few of the details of Saiyan battle training. When asked whether or not Saiyans actually trained, Toriyama responded with "Most Saiyans are born with a talent for battle, but they still need to be taught the trick behind flying and stuff like that...Only a select few Saiyan children receive a short period of special training in order to acquire even greater battle power."
So while Saiyans do indeed need training, only a certain few of them -- most likely the most elite of the race like Vegeta -- receive the training to do so. Though their natural battle prowess can still lead to them learning these techniques.
Toriyama goes on to explain why someone without the specialized training like Goku gained as much strength as he did stating "Of course, some kids manage to fly even without being taught. In Goku's case, he was on Earth where people flying was simply unheard of, so he was pretty slow to learn it." Goku is such a natural fighter he gained the Saiyan strength, but not necessarily the specialized skills.
Toriyama has often given interesting Saiyan tibits in the past highlighting a lot of their background, and it's a fun way for fans to learn more about the biology of its characters. Even if it means learning that Super Saiyans are born from a greater amount of S-Cells in their body.
Dragon Ball Super's "Universal Survival" arc is part of the recent simulcast agreement that sites like Crunchyroll and Funimation have scored. Dragon Ball Super airs on Crunchyroll Saturday evenings at 7:15 p.m. CST. Adult Swim airs the English dub during its Toonami block Saturday evenings at 9:30 p.m, and is now available to stream on FunimationNOW and Amazon Video.
If you want to catch up with the English dub, the first 39 episodes of Dragon Ball Super are now available to stream on FunimationNOW, Crunchyroll's VRV service, and available to purchase on Amazon Video. The 39 episodes span the full range of what has aired in the North America and covers the "Battle of Gods" arc, "Revival of F" arc, and the most recently ended "Universe 6" arc.