Your words are so true!
I learned some of your lessons when I traveled across the country, solo on a bicycle. I was approached by many people who lived in the towns I traveled through, and I loved chatting with them. I noticed when I switched from traveling with (small) groups to traveling solo that many more people approached me. I asked one woman if she would have stopped to talk with me if I hadn't been alone; her answer was a resounding no.
I found that part of the magic of my trip was in sharing stories with others who were traveling and with people who lived in the areas I was passing through. And I learned first hand about the kindness of strangers. It's so important to be open to meeting and interacting with others.