Those with disabled members in the party get a pass, at times it can seem unfair, but they may have disablilities you're not aware of, (2 of mine have autism, and standing for long periods in a crowd where they're getting knocked and pushed would be something they could not physically deal with - we have sometimes taken turns standing in a queue while other parents stands somewhere separate with the kids, but this isn't always possible), even the reason they're in the wheelchair might not be known, worst case scenario, and this child might not have another chance to experience this ever again, queueing is part of a holiday at disney unfortunately, at least it's better than the bad scrum there used to be for characters
