It seems like the phrase "почему здесь" may have been a translation error or misunderstanding. "почему здесь" translates to "why here" in Russian.
If you are asking why your mother was waiting for you yesterday, it could be for many reasons such as picking you up from a location, meeting up with you, or attending an event together. It's best to ask your mother directly for the specific reason.
It seems like the phrase "почему здесь" may have been a translation error or misunderstanding. "почему здесь" translates to "why here" in Russian.
If you are asking why your mother was waiting for you yesterday, it could be for many reasons such as picking you up from a location, meeting up with you, or attending an event together. It's best to ask your mother directly for the specific reason.