I say go and take some club soda or Perrier. A few people cautioned me about triggers in early sobriety but my mind was made up and I wasn't gonna be swayed. And I will say watching others drink never made me want to get drunk. It was the opposite in fact; I could see how idiotic I probably looked drunk.
If you think you will cave, then don't go. But the whole world is gonna keep on drinking with or without you so eventually you'll have to be ready for it.