For example, lets say I wake up tomorrow. I go outside and take a walk in the park. I happen to meet a very pretty, very catholic, young woman who I think would make a good mother. There is interest chemistry. We exchange numbers. I call her every night. I go over to her house and meet her family....etc..etc. We go to mass together.......Within 2-3 weeks we decide to get married. I have a good job that can support a family. There is a lot of sɛҳuąƖ desire between us now and it is hard to avoid fornication. Now I go to the SSPX/SSPV/CMRI priest and he tells us we gotta wait 6 months, even though we have been properly catechised are devoted to the faith????? Whats up with that???? Makes no sense to me.
Spoken like a true single person.
I'm not saying six months needs to be a hard and fast rule -- I think it depends on how long you were courting (a.k.a. dating -- but "dating" usually implies impurity these days. Anyhow...)
It takes a while to plan a wedding, for those who haven't done so. Six months is plenty reasonable. Men who complain about the six-month wait are probably the ones that have marriage problems early in the marriage, when they discover that marriage is a "school of chastity" (to quote Archbishop Lefebvre).
Gasping into marriage like a baseball player sliding into home base is not the best.
It's good to develop a LOT of virtue to be able to resist carnal urges. After all, as a married man you're going to have to resist your urges *plenty* of times, including when you go to the store by yourself. Don't think that every woman you meet is going to be old and/or ugly and/or disgusting. There are pretty, feminine women in long skirts, too, who act like women. You don't see as many of them, but the fact that I've seen some even though I work from home and don't go anywhere except on Sunday -- I'd say men have to be prepared. They have to learn to be distant (as in, keep a professional distance) yet polite with women, etc. The better they get at controlling their fascinations/urges/desires, the better for them.
And let's not forget inconveniences due to childbearing, etc.
The six month wait is a test for men. It builds strength that will prove your true love for your spouse-to-be, and carry your marriage for years.