Walls are in buildings. Most people, including me, don’t have strong feelings about walls. They are just there. But everyone would notice if they were gone. The roof would collapse on our heads and we wouldn’t be happy.
I rode in a limo in 3rd grade. Some kid had a surprise party and his mom invited everyone in the class. We went to jumping jacks, which is a place that has a lot of bounce houses just sitting in a warehouse type thing.