Well, we learned sometime in the Cell saga that 18 started out as a human and was modified to be a cyborg android. This also means that Marron might be the first human-cyborg hybrid offspring in existence, though not the only one. Android 17 was revealed to also have had a child in Dragon Ball Super.
What did Krillin wish for Android 18?
Yamcha offers Krillin advice on how to win over Android 18 After Goku reveals that he does not want to be wished back, Krillin asks Shenron to turn Androids 17 and 18 into humans. Shenron denies the wish, saying it is beyond his power. Krillin then wishes for the bombs in the Androids to be shut down.
How old were Android 17 and 18?
Assuming their number designation could be a hint to their approximate age when they were introduced, as they were kidnapped as children, this would make both Android 17 and 18 in their late 20’s or early 30’s by the end of the Dragon Ball Super anime.
Is Android 18 stronger than Goku?
Android 18 is very likely on the same level as Piccolo or maybe slightly stronger or weaker. Android 17 on the other hand is definitely stronger than SSJG Goku but not stronger than SSJB Goku.