...or they destroy 2 people who get divorced and may or may not ever get married again. Roll the dice?
Again, the way I see it is that if due to the reasons you posted there is a real chance that this couple will get divorced then they should not get married in the first place. Al things you posted have nothing to do with love. You do not have to be in love yet to bypass these challenges. You just have to match. And again, as I said marriage always comes with challenges, I dont think that these challenges are that complicated to complicate a new marriage.
You can even look at it as ideas to keep the couple busy and creative after they got married.
1. Learning to live with someone new is hard. There are a lot of habits to get used to. When the couple is working or in kollel, there's a buffer, some alone time, that allows for the adjustments to take place without being "in your face" 24/7.
Arrange a Minyen in your backyard so you can give your wife her piece of mind when you are busy with that and davening outside. You go out to the grocery. People are more locked in these days but everyone finds reasons to go and come.2. Halachically, difficulties of dealing with niddah. That's always interesting to navigate in any new marriage, let alone one where you're stuck in the same house together with little to no breaks.
Trying to find a Dayen that will see you these days ..time consuming.. Thats what you want, right? I believe all Mikvahs are open with proper precautions all young ladies figure it out. Again, these things take longer to accomplish but who cares, there is nothing to do anyway. Right? 3. Financially. Lots of people out of work, or families not in as good of a position to help the new couple as they otherwise would be. Setting up a new house and putting all those stresses on a new couple can doom them before their marriage has a chance.
Agreed here. If its not financially possible should disscus with a cometent rav on case by case basis.