It has been my experience that beyond the age of about 25, attractive, desirable women don’t usually use dating apps - they don’t need to.
After 55, this is certainly the case. A woman who still desires an intimate relationship has lots of interest. My cousin is 75, has a sweet, fun personality and still looks smashing.
It is amazing to watch how men act around her - if she wanted she could have any of them.
On the other hand, dating sites for seniors have lots and lots women who just want somebody to buy them a nice meal.
You tell your cousin to watch out. As my MIL used to say, at that age, men are either looking for a nurse or a purse!