Yeah, it is sad to think how different things could have been, especially when you consider how loud/dangerous/toxic early cars were. On the other hand, before

Yeah, it is sad to think how different things could have been, especially when you consider how loud/dangerous/toxic early cars were. On the other hand, before that, we (humans) allowed horses to shit (and decompose) in the streets, and long before that, we invited livestock to spend the winter in the same room. So the past wasn't idyllically clean or well organized either.