Fast Food Playlands

Some McDonalds and Burger King restaurants have large, intricate playlands. They go up pretty high. Some of them go up nearly 20 feet.

If there are weight and height restrictions barring the bigger kids from using these playlands, how do they test them for safety? With really short people? Or maybe they use stunt kids?

I'm just wondering because I would like to climb up to the very top of one without having a "concerned" parent yelling at me.