According to a statement on behalf of the American College of Medical Genetics and Genomics, there is insufficient evidence to recommend universal genetic testing for BRCA1/2 alone or in combination with multi-gene panels for all breast cancer patients.
http://news.vumc.org/2019/12/13/the-american-college-of-medical-genetics-and-genomics-advises-evaluating-all-breast-cancer-patients-to-determine-the-need-for-genetic-testing/