You should really read the doctrines and manifestos of the extremes on the left. They dont hide the ball. In the broader social context, think of urban v rural. In urban environments, which is more frequent: dating till mid 30s, pursuing career or personal entertainment, or planning on finding someone and having a few kids. In the rural, it's almost inverted.
I'll play my own anecdote just as an example. Obviously not concrete but just to consider: the more leftwing liberal friends I have all want to still travel the world, eat exotic foods, do everything that purely interests them. They have little interest in starting g families or settling down. They view children as being annoying expensive and an obstacle to their personal pursuits. Dating is more a game than a search for a lifelong partner. Divorce doesn't concern them. If they get divorced theyll be free again and will just find someone else. They dont worry about what they'll be doing when they're 50 60 or 70. Or who will be for them in their twilight years. As lo g as they lived that life and got theres, that's all that matters.
And more power to em. If that's how they want to live, that's fine. Flipside, and of my friends that are more conservative or moderate all want families, are in the process of starting them or well on their way. They're looking down the road 10 20 30 years. They dream of being surrounded by family on their final days, of leaving a legacy.
No ones life is perfect. People who marry may end up unhappy, and those free spirits may live their best life. But man it seems the urban side is a lot more vapid and self serving in their pursuits.