LogFAQs > #878938686

I mean, if they waited a year to do that, Frieza would have almost certainly wiped them out by then.

Yamcha could tell them about Frieza and his plans, I guess, which would probably be enough to get Goku to go at least. If they don't go at all, they'd just get wiped out by the androids, who in turn would get wiped out by Buu.
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