It's odd to me that people who I've seen pee every place imaginable in the parking lot are now too shy inside the stadium to pee in the trough. I distinctly remember my confusion when I went to a sporting event in Atlanta as a young man, waiting in a very long line, and seeing nobody peeing in the sink. Of course they were proper sinks, not the circular baptismal pissing fonts they have in OP, but I was genuinely confused for a minute.