That’s possible. But how do you really know? There is no way to know how often other people have sex (I’d not go by what they tell you).

You might end this marriage and look for other women and they might not want to have frequent sex either. That’s a tricky one. Or you might not find meaningful relationship (it’s not as easy to find as we get older) and might have to settle for hookups (although 60 something ladies aren’t as much into hookups). Or you might not find anyone suitable and have to stay single and take care of your needs on your own as everyone who doesn’t have regular partners

I am not negating importance of your issue, I am just thinking if you are willing to grow old alone (it’s a possibility) because you don’t have enough sex. I am not sure how realistic you are about finding 60 something women willing to have new relationships and frequent sex. They might have their own high expectations of a man (not sexual) and it might not be as easy to start a new relationship as you think