[1] People who are kinless may call themselves elder orphans or solo agers.
[1] The number of kinless people depends on the definition chosen and the family structures common in their culture.
The grey divorce phenomenon can result in older adults unexpectedly becoming kinless.
[1] In the US, about 1 in 16 adults over the age of 55 have neither living biological children nor a legally recognized spouse.
Stepchildren may or may not be counted as the kin of an aging stepparent, so some people may be considered kinless even though they have a stepchild, and others might not be.