Two charts illustrate how the divorce rate and the remarriage rate in the United States vary across seven age groups. See the captions in the charts for the sources of these data.
The rate of divorce is much higher for younger persons than for older persons but the rate of divorce has declined among younger persons than for older persons for the two-year comparison—1990 and 2015.
Remarriage rates are also much higher for younger persons but there is a significant drop since 1990 for younger persons compared to the relatively stable rate for older persons.
What is not obvious in these data are changes in people living together.
About creating surveys and understanding applied statistics...
FIND my books on AMAZON