A primary function of industries is to tailor products to the needs and likes of the consumer. In the case of music, lyrics are tailored to reflect the belief structure of the consumer. The primary audience for top 40 radio is women between the ages of 18 and 34. A common refrain in the top 40 genre is you only live once, or live in the moment. These aren't just musical refrains, they are cultural refrains.

Lets examine the effect of this belief structure on the lifestyle of an 18-34 year old woman:

Past: Modern women frequently deny responsibility for past actions. That was a long time ago. I was drunk. I was going through a phase. Those actions made me who I am today. The number of men who I slept with isnt important. Modern women want to forget the past, and they want you to forget their past because their past reveals how shitty they truly are, and they dont what anyone to know not even themselves. Forgetting their past also frees them of any debts incurred, Biffaults first law.

Present: Without the existence of a past, a person is free do whatever they want in the present. YOLO! However in the short term its important to deny responsibility or defer responsibility to other parties. Denying agency is another important tactic for women. Rather than admitting that she walked to a man's house for sex, she will say that it just sort of happened. The logical conclusion is that a modern woman is not responsible for any of her actions, instead all of her actions happened to her.

Future: When a person lives in the present they can't see the future. The reason why today's woman eats so much fast food is because she is incapable of anticipating her hunger. Buying groceries, packing food all takes preparation and forethought. Rather, she will go about her life as if hunger does not exist, until she feels extreme hunger pangs. At this point she will impulsively buy something unhealthy. As a personal trainer I can tell you that many women eat one or two meals a day. Women are also incapable of anticipating long term effects of alcohol because in their mind they will be forever young. Because the far future is a scary concept for someone who can't plan, fate or the blind belief that everything will turn out fine, is used to alleviate any fears of the future.

TLDR: YOLO philosophy makes women unreliable