You have that right. Ask the know it all 20 something again when she is 40, lonely, and bitter over going through dating hell and lost opportunities.
Right, and after 40, the women have self programmed themselves into the thinking that every future "relationship" is going to fail just like all the others so they become a self fulfilling prophecy. Very hard to get off that merry go round. They don't have a clue about how to manage the first few dates, the getting to know you phase, the "discussion" phase where you both decide on the future. They've never done it that way - its just "well, we hook up, we have sex, we move in together, he does my girlfriends and then we break up!"
That's their model for a "relationship"