I am English and my wife is Japanese, we have just had our first daughter (one month old). My wife speaks English fluently and my Japanese is okay for day to situations and still improving improving. Our aim is to have English language as our home/family language. My wife is planning to speak in Japanese when it’s just them (with her mother, family etc also). Her family also speak English to various amounts of fluency. Out of the house obviously if the situation is needed we will converse in Japanese but if the situation does not require it then it will be English. I am posting here just to here any tips or information which could help and be beneficial for our daughter as our aim is for her to be at least bilingual in English and Japanese. Thank you in advance 😁😁.