I've thought about this also as I grow older, where I'd love to live long enough to see the Triumph of the Church. It would be difficult for me, having grown up my entire life in the Vatican II era, to pass away while the Crisis has not been resolved by God and the Church has not triumphed. Many of those who are older at least had a chance to live at a time before the crisis, and the younger ones will likely (God willing) make it long enough to see the Church's Triumph. But someone like myself is right on the edge, born in 1968, going on 56 now ... although at least I was able to be baptized in the Traditional Rite (just before that was introduced).
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I feel the same way. I thought I'd see the restoration of the Church when I was younger, as well, but now I don't really think so. I actually lean more now towards the idea that this crisis will go on for a much longer time than initially thought in the 1960s, like maybe a century or two. In fact, part of me wonders if the current civilization we live in will have to collapse first, due to negative birthrates and the massive barbarian invasions (so-called "immigration" of savage peoples into civilized countries), and that maybe such a collapse is actually necessary to make a restoration of the Church possible, in order to purge society of the evils of democracy, feminism, perversion, liberalism, and every other attack on nature in order to restart the world afresh. That's kind of like what happened with the Roman Empire. It collapsed due to all those factors I mentioned, but this collapse was necessary to remove those obstacles to the spread of the Faith, and replace paganism with Christianity.
I guess it's also possible that this will simply lead to a restoration of the Church and a gradual re-building of civilization, as happened in the middle of the first millennium, and maybe the world will go on for another five or ten millennia before the world finally comes to an end, though I think that's a bit less likely, though. I wonder if, in future times, the vast areas of Asia that have never been Catholic countries, such as China and India will become as Catholic as Europe was in the ages of Faith.