Are people this days less "datable"?

I really wonder. Are there less "marriage" or "long term" datable people? Or is just a myth?

I want to add something I read

". You Don’t Meet Your Own Standards: It seems like many single people always have a long list of requirements and high standards of their future partner. The trouble is that many times they don’t meet the same standards they wish for in others. Wealth, good looks, hot body, not too short, not too tall, not too fem, kind, intelligent , not to this or that , etc. There is nothing wrong with having standards and qualifications for a potential partner; however if you can’t meet at least 95% of the requirements you have laid-out, you’re delusional and you’re not ready for a relationship.

You’re Emotional Damaged: No, we are not talking about diagnosable mental illness; we’re talking about the stressful, self-limiting and self-loathing baggage that you are carrying around from all of your past negative life experiences. Whether it’s from family experiences, high school or past relationships that ended badly; you’re emotional damaged and you’re bringing all the weight of mistrust and insecurities into your relationships. You want trust but are reluctant to trust others. Your emotional baggage becomes a wedge and splinters the few relationships that you are able to form. If you want a relationship, you have to be willing to allow yourself to be vulnerable and one aspect of vulnerability is to forgive. A trait of forgiveness means understanding you can’t change the past but you can accept it, learn from it, and grow. Often we not only need to forgive others but also forgive ourselves, which many times can be difficult. Seeking professional help is a sure fire way to talk through your emotional baggage and come out a new man.

Not being relationship material means that this person is not ready nor willing to invest the effort necessary to initiate or to maintain a mutually beneficial romantic relationship."

Edit: I'm not speaking specifically about marriage, but yes relationships :) I am in favor we don't need to marry to have a life commitment to someone.