@LizzyM @efle This basically sums it up. Like
@StanleyYelnats explains, there is a big difference between an event being at a bar, vs a restaurant. In general, I and most of my friend's group has never set foot in a bar, where the primary purpose is to socialize while consuming alcohol. For example, in terms of both pre/post interview socials for medical school AND residency, myself and friends would attend if it was at a restaurant, but skip if it's at a bar.
The example you gave of an airplane/wedding/ceremony. In those situations, drinking is not really one of the primary activities, and it's 100% possible to engage in the event without drinking anything. From the perspective of practicing Muslim's 90% of events we go to in terms of dinners, ceremonies, and weddings, alcohol is not on the menu whatsoever. For the other 10%, we'll be happy attendees and won't mind if anyone else drinks we just won't do it ourselves. As weird as it may seem to you guys to rarely encounter alcohol, its 100% normal to people like us.
Muslims, like other religious people, vary in their beliefs. Some will find it fine to drink/smoke, some will be okay with paying for others, beer, while some of us won't pay for it or even carry it. Generally though, we're A-okay taking the juice/soda and will happily pay for the rest of your meal just not the alcohol portion