Should my mom undergo radiation for breast cancer?

Ok everyone.. decisions decisions my mom had lumpectomy right breast stage 0 DCIS another lymph node involvement grade 2/3 after second surgery all clear margins no residual cells left. Next step is meet w radiation oncologist and medical oncology for hormone therapy. Hormone ER/PR positive HER2 negative. The surgeon said it’s up to my mom and whatever the radiation oncologist recommends but basically reoccurrence is 10% without additional treatment. If she does both radiation and hormone therapy it brings it down to 3% reoccurrence if she opts to do just hormone therapy pill it’s 5% reoccurrence so only a 2% difference. Given that she is 69 yrs old type two diabetic poorly managed by the way even w meds, but she is good shape bmi normal, takes blood press meds, thyroid meds and cholesterol meds, haanyone