Let's not forget that this is prime season and restaurants get very crowded. This employee was given instruction in anticipation of what was to occur during the lunch period. She had to consider how many tables of four, two , eight...... Factor in how many diners linger after eating and it gets more complicated. Essentially the OP had only to consider her group but the employee every group, couple ...
Frankly I prefer inside because too often outside dining means flys to me
