You described conservatism as moving on and breaking things, that seems to be turned on its head. I would think it is more about gradual changes instead.

Open relationships is a fun topic to discuss, especially on the internet.

For many such relationships are out of the question, perhaps due to insecurities and not being aware of their self-worth or for other reasons. Personally I don't think I want to be engaged romantically with more than one person at a time. Why? Because I do would get jealous and I likewise want to commit myself to someone. For myself and my partner. I also don't really feel a desire to romantically engage others.

But those that advertise open relationships it often comes with some patterns. For once that is mentioning the required emotional maturity and attributing it to participants. That is interesting because I perceive this as fishing for confirmation for personal choices. But perhaps my skepticism has the same motivation. But where do you think you need maturity? I assume it means to accept compromises? Where is that needed in such a relationship?