I think it’s an excellent idea. My husband and I met, and got engaged a month after meeting. However, we set the wedding date a year from our engagement, and our priest (after getting over the shock of us getting engaged so quickly after meeting!) even asked us, “Why not get married in six months? That’s the minimum, after all.”
We told him we realized that we needed at least that much time to get to know each other, to work together as a couple, and he agreed. He said he wished more couples were willing to wait that long, rather than argue about the six months being too long a wait!
I have a brother in law who got engaged when he was nearly 50 years old. He and his fiance managed to get the priest to waive the six month waiting period (how, I have no idea). My DH said he thought that was a bad idea; my mother in law said they felt they were old enough and mature enough, that the six months was for “immature couples”.
Well, fast forward a year or two and they’re having marital problems, from what we hear.

Maybe a little more pre-Cana would have helped them.
Even with our self-imposed year-long wait, adjusting to marriage was tricky and we’ve had our growing pains. It’s silly to think one can just jump in with two feet, eyes closed.