I live in cities, and I usually walk around 15-20k steps every day for the last decade in cities. I listen to music or podcasts in my earbuds, and often I read stuff on chat on my phone as I walk. I have never run into anything, and never had any issue bumping into people or cyclists. It's perfectly possible for some people to navigate just fine in their environment while dealing with multiple stimuli, and in fact that's exactly why I love walking so much more than sitting. Having earbuds or using my phone at the same time for me is certainly nothing like being intoxicated while walking. It's important to not project one's experience as how it must also be for everyone else.