Ohhhh yea
This was one of my concerns when my ex-abf and I were together and also when Mr. R (last boyfriend) were together cuz he did not drink either.
But honestly.... you have to decide what is most important and take into consideration that there will be a life style change for him. That does not mean you "you" cant enjoy a beverage only that he cant. That enjoyment should not be about him.... its about you. There are always things that you can not enjoy together in life... with my ex it was the enjoyment of animals and drinking.
At first it was "strange" but as time went on it was really a non issue...
Just keep working on you and when the situation comes up you can deal with it then.