"I guess I'm compromising letting her drink whatever she wants with me so I can keep her safe, VS her going out by herself or with other alcoholic friends."
Codie thinking at it's finest, you are condoning her drinking as long as it is at home and under your watch? You are attempting to send her a message, you are a child, you need my approval to drink. I will approve where and when.
Believe me, this mindset will not work, you cannot control her and bringing her alcohol is enabling...this entire plan will backfire in your face. She is an adult and a alcoholic, she will outsmart you every time, they are very cunning and manipulative.
Please get to some Alanon meetings, read the stickeys at the top of this forum and cynical one's blogs.