Appropriateness of using ～たい in a polite setting: "Have you always wanted to be a teacher" in Japanese


I wanted to ask this question to my Japanese instructor, but I understand that
in Japanese, it is inappropriate to use 〜たい to 目上の人

So how would I phrase this question in a polite way? よろしくお願いいたします。




I don't think it's inappropriate to confirm what's already done instead of
his/her current desire (Actually, this question doesn't seem taken as rude,
considering the nature of the question, even if it referred to the current
situation). So, I'd say ずっと教師になりたいとお思いでしたか.

