How much should one in their 40s splurge? Some say at 40s, you should save more so that you have more to retire but..?

I recently met this late 40s woman who isn’t earning a lot but she has saved quite a sum of money during her younger days hence currently, she max out her salary to indulge herself & foot her bills . I asked her, why not put more for retirement. Her reply was what if I die younger and I don’t get to enjoy the money I saved? Ithought it was an interesting answer. And when you older you have lesser wants and “what if when old, I cannot enjoy some of such things cos of health “ what do u think?