The two primary reasons for the graying of America
Census of baby boomers
Better medical treatment, living longer
Most likely, yes.
Different cultures value different ideas, different upbringings and have different value systems in general. All of these differences lead to different people in terms of their preferences and choices. Because all this exists, we can very safely say that a personal identity would also be different in a different culture.
The Kansas River stop was most likely the most dangerous stop of the Oregon Trail.
Rivers crossing was usually dangerous for settlers with unpredictable tides ran the risk of drowning, losing livestock, losing important supplies, or overturning wagons.