Today was my kid cousin's birthday and we decided to celebrate it by going to the Boston Pizza on 4307 130th Avenue SE #220, Calgary, Alberta. While our server, Kelsey, was amazing and patient with the 8 kids that came along with us, we were greeted with smug looks, impatience, gossip, and rolling eyes from the other staff.
Yes, they were a handful, but they were controlled and weren't running around and screaming. They sat down and ate their food and occasionally walked around. If the staff had a problem with us, there was absolutely no communication about it other than the obvious snottiness in their body language, attitude, and tone of voice.
My uncle, boyfriend, and I always make a point of being polite and none of that was reciprocated from anyone other than Kelsey. For a restaurant that considers themselves "family-friendly," you guys may need to do a better job of training your staff to be more considerate.