Dallas BBQ review: Indoor service

My cousin and I came here to eat, we ordered food and one alcoholic beverage for her. She is 24 years old I am 21. I don't drink but they insisted on seeing my identification. I showed them, my cousin doesn't have her hard copy of her ID but she has a clear picture and several bank cards to verify she is who she say she is. We asked to speak to the manager, he came and asked what was the issue. She stated that she has come here several times to order out and indoors months before this pandemic while purchasing alcoholic beverages and they never asked her for ID. The manager went on and said he can't take that because she doesn't look her age. He won't ID someone that looks 30 and older, that's body shaming as well as age discrimination. Nonetheless there are others here ordering alcoholic beverages without being asked to see ID. I just feel like if your going to enforce rules it should be 24/7 that your open not when you feel.