A young woman being with a 60 year old ugly old man. That is disgusting. I don't believe that this is ever voluntary for the woman something like this, but desperation. A drug addiction, bad spiritual and psychological problems, extreme debt and lack of money that is at a life threatening level. I don't believe that any mentally or spiritually healthy young woman would want to be with some ugly old man.
However, it is actually very easy for old men to find a good relationship with an old woman, because there is such a higher number of old women compared to old men. Most men die at a younger age. I don't even want to say this because it feels gross to say, but there are a lot of horny old women looking for a man. A few years after my great grandmother died, my great grandfather got a girlfriend and they were together for almost 10 years before she died. They were both the same age in their 90s and she was a wonderful part of our family, and we are extremely lucky that she was there every day to help him. She was also a widow.
Every town has some kind of clubs or groups for old people, and that is where they met at this old person club that had meetings like every week or every 2 weeks.
Trauma creates Plutonian behaviors to restore what was lost, so what you are seeing as a pathological pattern is not wrong, but it has to be understood that these people are operating at the current level of behavior and simply blocking or restricting won't make it better.
Someone with a drug addiction is acting out behaviors of unhappiness and ego pain, where the drug is an improper solution. Blocking them from access to the drug will solve secondary damage, but it won't solve the primary, pre-existing trauma. Therefore they are likely to act out their pathology in other ways, with other coping mechanisms, until the underlying trauma is healed.
Non-traditional relationships can be caused by pathologies, but not by definition. People who have Venus in Capricorn could want an unequal relationship. Similarly, a person with Sun in Scorpio would be more attracted to sexual behaviors and can therefore have more of an affinity to providing sex as a service. Someone could be born with Sun, Venus, and Mercury in Scorpio and be profoundly skilled and attracted to sexual behaviors, as well as able to create value from that, expressing through the Sun and Venus.
Outside of sex and relationships, people can have aspects of Pluto or the Scorpio sign in other aspects of their chart, which can also act out negative behaviors that are also destructive despite not being as commonly known. Pluto/Saturn and Pluto/Moon will link sexuality and intensity to areas of career and emotions, and can also lead to self-destructive behaviors, in both genders, and also outside actual physical sex, but through obsession or aggressive acts, as one example.
There is a pathway of healing through spiritual development and re-establishing control, which can involve both sex and development of spiritual abilites which creates or accompanies healing of the prior trauma. That is just the nature of Pluto. It cannot be simply blocked or avoided. It is like engaging in the "shadow side" of that area of life. We cannot reject it entirely, but need to create constructive expressions of it.