Ice cream is down on the sells list from the burgers and fries at all the DQs I’ve been to.
DQ marketing is different up here. Most of them are open from Mid-April to Late-October. That creates a craving that comes with the excitement of spring. It is a treat to go for a DQ ice cream in the heat of summer, but most of us never eat their burgers. The few DQ's I've seen with seating areas never seem to last long.
I liked your list, aftr, 16-21 easily apply to me.