Stubborn MIL

Currently MIL is helping to take care of my LO. I feel vry angry with my MIL for her stubborn. My MIL like to go out everyday esp go crowded places like (market) despite being told to stay at home due to unlinked cases. She felt that she is already vaccinated, so she can go out anytime she want. I just cant understand why she cant buy vege for the whole week and yet she prefer to go out everyday! EVERYTIME i told her dont go out, she just dont care still go out, sometimes even drive my hubby car from east to west to shop for her grocerries. I also told my hub to speak with them but jus useless. Alot of conflicts with my MIL...I hope we can move out soon..😭😡