My mum always says, "As We make our beds so we shall lie on it." If you are not surrounded yourself with feiend and d family now, of course that fear is inevitable.
But I don't feel that fear. I don't isolate my self and I have joined a couple of social groups I connect with. And I did not say women don't fear dying alone. Rather men are MORE afraid than women.
As I have seen enough attacks on women for staying single. Only insecure men do such because they project their fears on women.
As for stats, you can see it below
https://amp.cnn.com/cnn/2022/12/18/asia/south-korea-godoksa-lonely-death-intl-hnk-dst/index.html
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2225416/
https://m.koreatimes.co.kr/pages/article.amp.asp?newsIdx=341959