Worked in restaurants for decades and never had a place not have milk available. It’s used in lots of recipes and a lot of the places had Lil cartons for kids, also every drink was available “virgin” if you wanted a cocktail without booze, or we would have apple juice, orange juice, etc. I have never seen a restaurant that does not have a wide selection of non alcoholic drinks. Do you want them to list Arnold Palmers or are you asking for every type of non alcoholic seltzers or non alcoholic ciders or non alcoholic beers? Most restaurants have one or two but the non drunks don’t drink 6 non alcoholic beers so it’s just not worth the cost and room of keeping a large amount of non alcoholic pre made drinks. So stop complaining and have a water like a real man