Yes Yes Yes...It's so sad that people don't even see other people on the street!
Interestingly enough when I go for my walk on Mission Creek walkway surrounded with trees that form arches and a creek on either side. Most everyone on the path says hello or nods their head. I'm pretty sure that we would not acknowledge each other if we pasted on the street. Now why is that? I conclude that in nature we become peaceful beings because we're caressed by our surroundings and feel connected to our fellow exercisers and nature lovers.