The shopper didn't speak any italian

I work for a cannabis dispensary that is located two miles from a huge International airport. There are always people in the cannabis shop that are not from this country plus many of them do not speak italian. My pal and I have several Spanish speaking employees plus one employee that speaks french. My pal and I do our best to try to effectively communicate with each one of our customers! Periodically that job can be taxing from time to time. On Wednesday afternoon I was laboring at the cannabis shop plus a shopper came into the store for the first time. The shopper wanted edibles, however that’s all I could tell. The lady stood in front of the edibles display plus she was trying to point to the items that she wanted. There is about 10 ft distance between the counter plus the part where the pets are kept. It was taxing for me to understand which one the woman wanted. I finally decided to let her move to the part behind the counter so she could option out the products that she wanted. My boss saw that I was letting a shopper into the employee part plus she was honestly unhappy. After I charged the shopper plus the woman left, I told my boss that she did not speak any italian. My boss told me that I am not allowed to let anyone behind the counter, even if I cannot understand what they are saying. I think it is a ridiculous rule, but I have to do what the boss tells me to or risk losing my job.