Have personally known men who took the risk, got married, had kids, and the moment the kids were born, the women lost interest and left. Some even leave behind the kids, but they do take 18 years of court-mandated alimony…
Some of those women do it numerous times. If the roles were reversed, we would call people like that “predators”
My reluctance to get married is strictly because the state incentivizes this sort of behavior and it’s no secret at this point.