Real world statistics indicate that people are getting married later and later in life (first marriages) and that a very large number of them had shacked up before marriage - “trying it out”. Without getting into a long dissertation on oxytocin, the bonding which that (the constant flush of oxytocin through the system) causes is at least part of the source of it being called the 'dumb hormone". In short, they are marriages which have a base which is largely built on the prior sexual encounters, and is the equivalent of building a house on sand.
Wishing and hoping, without a solid foundation, is a bit akin to spitting in the wind; the results are likely to be other than what was wished for. Coupled with the shacking up is all too often a prior history of serial fornication, another not-so-great foundation to a permanent marriage.
And then to that we can add the life experiences of one if not both parties, with the very high likelihood that at least one of the parties comes from a family broken up by divorce (if not both), another great foundation for permanency. You would be amazed at the number of people who enter marriage with a very clear thought that “if this doesn’t work out…”. I do not consider their wistfulness or their hopefulness to be anything more than “Well, I hope this will be permanent, but…”. And that, again, is not entering marriage intending it to be permanent. Intending and hoping are two different things; likewise intending and wishing.
Part of the [problem is that too often, we have little or no serious and deep contact with the secular world as such. and that secular world includes those who are “spiritual but not religious”, and the large number of people whose faith expression is an occasional attendance at some local church, with not much more than a superficial gloss of religious commitment.
In other words, I sort out the wishing and hoping crowd form the intending crowd. The latter has far more commitment to working through the tough times than the former. And I have met both, and continue to be astounded at how many were wishers and hopers, but not intenders.