You need to live a certain lifestyle, minimal, in order to avoid predatory child support and have a prenup, then the playing field is even.
We also have common law where I live, which is problematic for a guy who doesn't understand the implication of living with a woman. Also, if a call of domestic abuse is made where I live, the police MUST take you to jail as a man, no exception, because so many women were getting killed in domestic abuse cases.
Definitely important to know not just marriage laws, but the nuances of those laws where you live.