The Real Reason Why The Saiyans Couldn’t Become Super Saiyans!
It was revealed that it is actually not possible for every Saiyan to transform into a Super Saiyan. A Saiyan should have a sufficient amount of what Toriyama called as “S-Cells” and a gentle spirit to transform. Now, you all will say, we know about S-cells, it’s old news but then can you explain why didnt Vegeta become a Super Saiyan before Goku?
Or for that matter, how could there be NO saiyan in the entire history of Saiyans(except Yamoshi) that could turn Super Saiyan? Every Saiyan is born with a certain amount of S-cells inherited from their parents. The key factor is the environment. The amount of S-cells varies because the environment is a big factor.
Goku was regarded as a weak Saiyan kid but he has more S-Cells than Vegeta because he has lived an easier life on Earth. He didn’t have to go through the ‘savage’ hardships Raditz, Nappa or Vegeta had to suffer. He never had to suffer being under control of Frieza. He would never be able to defeat Frieza if he wasn’t living on Earth.