YOU SAID:
Can't you just be good
INTO JAPANESE
いい子にしてればいいんじゃないの
BACK INTO ENGLISH
Isn't it okay to just be a good kid?
INTO JAPANESE
ただいい子でいればいいんじゃないの?
BACK INTO ENGLISH
Isn't it okay to just be a good kid?
That didn't even make that much sense in English.