就学許可書の申請をしていましたが、書類審査だけではOKとならず、先日大使館でインタビューするように連絡が来ました。インタビューを受けられ無事留学した方いましたら、インタビューの内容や対策について教えてください。
因みに私は私立専門学校へ留学し、家族（妻と子供）も同伴する予定です。たぶん、年齢と家族同伴ということが引っかかってしまったのではないかと思うのですが....　少し不安です。

I had an interview as same as you before getting study permit.I think it is because of having a child with me like you.The embassy doubted me that I was planning to go to Canada for my son to make him study English which is not true. They also asked me what I am planning to do after finishing my school in detail.So it is better to prepare to answer your plan after finishing your school.The person at Embassy(very mean lady)asked many questions and had to answer very specific. But if you have enough money and pay everthing for your children as well, it will be ok. I can answer more in Japanese at my email if you want further information. Good luck.Y