I'm always glad to oblige requests.
https://www.newscientist.com/article/dn4462-suvs-double-pedestrians-risk-of-death/
And as to guns versus cars as to deaths. This graph shows the trend I was referring to:
Note that I said that the number of pedestrians involved in accidents had only gone up 10% but the number of deaths had increased at a much higher rate. I'm glad you agree.
As to "walking while old", there have been several articles about this recently. Here is one:
https://www.npr.org/sections/health-shots/2013/04/18/177783314/walking-while-old-elderly-pedestrians-face-greatest-death-risk
As I made no comment about "Choo-Choos" I will leave that the the willing typing of others.