Did Goku cause harm by withholding information about ROSAT?

[Sensiblesaiyans]

During the 3 year period in which the Z warriors train for the androids, Son Goku withheld knowledge of the ROSAT from everyone. He only reveals it after everyone is completely destroyed by the Androids. Do you think that Goku was wrong in doing so? If everyone were aware of said location, they could have used it at any time during the 3 years and potentially be much stronger than they already were at the start of the android saga. For example, Imagine if Vegeta had used it 1 week before the androids appeared and unlocked SSG2. The saga would have wrapped up very quickly.

https://www.youtube.com/shorts/vkuEAV7DaT4

[vilker]

Strict lifetime limit: In DBZ, the Room of Spirit and Time (ROSAT) has a strict 48-hour (2 years) lifetime limit. Wasting that resource blindly before knowing the Androids' true power would have been a fatal mistake. Without that backup, they would have never defeated Cell later on.

Goku knew the danger: Goku entered as a kid, and the extreme conditions meant he only lasted a month. Having a 3-year margin, he logically thought traditional training on Earth would be more than enough.

SSJ2 wasn't a logical option: Assuming Vegeta would have unlocked SSJ2 is absurd. At that time, they didn't even know a level beyond Super Saiyan existed. They weren't going to achieve it by magic without the proper pressure.

To be 100% honest and step outside the fiction, the real answer is that Akira Toriyama probably hadn't even thought of inventing that room during the 3-year time skip.

[super michael]

The humans wouldn't dare to use the ROSAT, even when they knew about the ROSAT existance they still refused to use it. So it wouldn't matter if they knew about it earlier.

The ROSAT has a limit of two people maximum, so they would need to take turns, plus once they used up their 48 hours they can't use it again. So they can't just use the ROSAT whenever they want, it needs to be an emergency.

[kiarasuraru]

If we're gonna play the blame game then the one's to blame is Kami. And as far back as the Saiyan Saga too. That was an arguably bigger emergency with a lot less of time leeway.
And if Dende went and improved the room then Kami should have been very well able to so the it's a limited resource that should be saved for emergencies doesn't fly. Besides, what bigger emergencies could there possibly even be? Even by Super's time they still refuse to use it as a whole.

We all know the real reason is that the idea was not even a inkling on Toriyama's head until then though.

[Zephyr]

Going strictly in-universe and not falling back on "Toriyama hadn't thought of it yet", we're forced to infer why Goku and God didn't mention it, since it's never addressed in the story.

A couple years ago I racked my brain trying to come up with good reasons, and I think they're okay:

Given that Goku knew about it, he had to have been confident enough in normal-but-goal-oriented training that he didn't think RoSaT-training was needed. Given the fact that their normal-but-goal-oriented training was not, in fact, enough, Goku's judgment here was incorrect. When he does suggest it, Piccolo (ie: God) is surprised, and says: "Of course...but nobody has been able to stay for the whole year in that room. You could barely stand a month in your youth..." So, there's no established precedent for when someone is ready for the RoSaT, since nobody has lasted a full year yet. I could understand Goku not bringing it up if he also thought that nobody was ready for it yet, 3 years prior. But, now everybody's stronger so they have a better chance of handling it than they did 3 years prior, and it's sorta the last resort; if not now, when?

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SSJ2 wasn't a logical option: Assuming Vegeta would have unlocked SSJ2 is absurd. At that time, they didn't even know a level beyond Super Saiyan existed. They weren't going to achieve it by magic without the proper pressure.

As Vegeta is beginning his three years of training, he insists that he will surpass the Super Saiyan. He probably just means that he'll get even stronger, rather than specifically acquiring a new form, but I think that's largely a distinction without a difference. The plot thread is a rare instance of consistency from the arc.