YOU SAID:
they were raised by bikes
INTO JAPANESE
彼らは自転車に育てられた
BACK INTO ENGLISH
They were raised on bicycles
INTO JAPANESE
彼らは自転車で育った
BACK INTO ENGLISH
They grew up on bikes
INTO JAPANESE
彼らは自転車で育った
BACK INTO ENGLISH
They grew up on bikes
That didn't even make that much sense in English.