How often should elderly couples have sex?

As often as they both feel the need to have sex.

I suspect that your question is a bit 'loaded'. Our sexuality is affected by aging, both negatively and positively. Aging does not mean that there has to be a loss of sexual function, frequency, or enjoyment.

If you stay healthy, and if you need a medication for ED, your sex life should continue as it has in the past. But many people encounter sexual desire issues and functioning issues that are not at all about the physical, but about the emotional and about intimacy (in the larger sense). These issues are predictable in long term relationships, and can be overcome with the right knowledge and motivation.

On the other hand, there is an added salience and intensity that can be achieved during the fifth, sixth, and even seventh and eighth decades that cannot even be approached in your younger years. Sex from fifty on can become far more than just pleasant physical release; it can become sublimely spiritual and deeply, deeply intimate.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.