Will hearing aids help me when I am in background noise?
That depends upon the hearing aids, your hearing loss, and the amount, and type of background noise that you are trying to get help in.
Determining what is, and is not background noise is the first issue. Some of the better equipment does an incredible job of this today.
It all depends upon the sophistication of the system being discussed. There are levels and layers of different noise reduction strategies, in use today by all the various manufacturers, some working better than others.