How long have you been together?

This is a matter of frame, she may call you daddy but you're not her father. Tell her this, simple and clear, you're not gonna be an asshole, you're not gonna be piss drunk, and you're not going to abuse a substance like alcohol. Tell her this is important for you, and it shouldn't interfere with the relationship.

Nothing a little chat won't fix really, set your frame and your boundaries, she is trying to establish her own boundary but it is kind of intrusive and silly. Hold frame, have some drinks and let her see you not behave like an alcoholic idiot, she will learn to accept it in time. Also, don't get butthurt at her reaction when you drink, amused mastery is key.

You know context here is important, and you provide none. You know the GFs psychology and therapy are important, and you don't mention it. You understand what RP and its teaching about frame and power dynamics are yet you use passive language like "let me."

You are a researcher, probably looking for some crumbs from that $20 million dollars the US Democrat party are throwing around to figure out how to have any possible chance of getting a heterosexual man to vote for them ever again. To you I say: go do the work and read the papers, but don't come here expecting us to read your bullshit story and do the actual work for you.

FUCK OFF!

Under no circumstances should you "ask her" to drink. You're not a child, and she isn't your mother; seeking her permission to do anything is weak and severely unattractive.

What you should do is assure her that if/when you do drink, you will still be loving to her and will never lay a finger on her. Then walk the walk by actually following through the next time you are drinking.

She can’t forbid you from doing anything.

If you write "GF forbids me from x"

you have basically lost the game. Doesn't really matter what X is.

You have lost.

When you let her dictate terms you give her your power.

Why the fuck are you asking for her permission? You're a grown man.

If you can't comfortably tell her no without asking us, you're relationship is cooked. She wears the pants.

I only read the title, I'm not gonna bother reading the fucking text.

A woman can't forbid you from anything. You already have a huge frame issue or a shit testing issue. "FORBID"? FUCKING FORBID MAN.

I am so, so glad, everyday, I wake up, and I thank Jesus and his mighty Father that I am not in a relationship (specially with a zoomer white girl) and that my life is free, peaceful, fun and I get to enjoy pounding western zoomer white thrash that others will someday marry and make their lives miserable and in debt. :)

Hakuna Matata motherfucker, gotta go to a beach bar now.

If you handle this maturely, it could prove an important moment in your relationship. You don't want to be dictated to by your woman. She doesn't want you to be a dick when you get pissed up like her dad can be. This is a great opportunity for you to lead her to greater trust.

Tell her you understand the importance of getting this one right for your relationship. Lay it out -you don't think its right she dictates to you but you know she is afraid you will be a dick and if you drink the beers, you need to prove you won't or you will be breaking her trust in you.

Don't be cocky and arrogant when you explain this be kind and serious and don't argue about it at all. Stick to a couple of beers and behave grown up when you drink them. Then it will have a good outcome. If she really kicks off at the idea, keep it to just one this time but explain "look I am doing this to prove this will be OK without you trying to control me, I am going to show you that you can trust me not to be a fool"

The only way this can go wrong is if you mess up behave poorly, argue like a whiny beta or if you act like a whiny beta's idea of an alpha and basically say "shut up woman, chad drinks what chad likes"