I searched for "referring to yourself in third person" and other similar phrases , but found only these: Q1, Q2. All searches in google also lead to similar discussions.
But I already know that referring to yourself in the third person in conversation might be seen as childish or cutesy. What I wanted to know about, however, was their usage in the workplace. There was an email from a co-worker asking if we were free on MM/DD/YYYY HH:MM. Then the replies that came were like this:
田中: 田中はOKです。
木村: 木村も大丈夫です。
Me: 私も大丈夫です。
etc. etc. They are men in their 30's - 40's and I don't think they were trying to be cute at all. In fact, this isn't the first time they've answered in this way. Our department head once asked us to check each of the projects we were in-charge of and the replies were in the form:
田中の分。。。
This second one, I can somehow understand since 〇〇の分 becomes somewhat an encompassing name or way to refer to the projects under 〇〇.
I'm wondering, then, when is it appropriate to use your own name like these examples? Should I have used my own name as well? Was it fine I used 私 (I used 私 because it's the only way I know how and I wanted to be safe... but was it right)?
If this has actually already been asked and I just didn't search hard/well enough, please lead me to those questions/articles/etc.
Thank you!