Uhhh okay I'm just going to give you a different perspective since everyone here seems to be so against it.
I know of 3 couples who knew each other for less than 1 year and got married and they are still together to this day 4 years after.
I was at their weddings.
Like ANY relationship, even in marriage, it's still the same principles that are required to make it work.
Equal give and take, equal contribution, good communication, willingness to sacrfice and/or compromise for each other, etc. etc. you name it, whatever.
If both are determined to make it work, I don't see how it wouldn't. If anything, learning about each other is part of the journey and years and years down the line it will be that much more meaningful to them to have waded through the hard times together to then be able to come out the other end more grateful for one another, and at a place where they can enjoy the appreciation that they chose each other over the circumstance. I think that's what makes commitment special.
Everyone is going to have their ups and downs, their good days and bad days, that's not a good enough reason to bail out solely on that alone or be too afraid to commit to someone just because you won't like their downs or bad days.
It's inevitable, everyone has them.
Don't get me wrong, I'm not saying to put up with extreme behaviours like violence nor am I saying that change is impossible, that's a different story.
If you waited til the relationship was perfect before you decided to get married then you'll wait forever because no relationship is perfect. It just becomes more refined over time as both people work at it together and as the years go by you slowly find that what you have in each other and in the relationship/marriage is a diamond in the rough that just needed time, patience and perseverance to strip down the dirt and reveal it's true beauty.
Okay so that last part is a tad bit of airy fairy talk, but you get my drift.
The point is, you never know how much time it is you need before you know it's the right time. It's like asking someone how long is a piece of string. It can be any length, it really just depends on the people involved.
It was a yes afterall so you never know, they might just be the 2 who are strong and determined enough to love and cherish the ups and the goods and to choose each other over the circumstance in the midst of the bads and the downs.
People have done it, so it's not like it's impossible and anything worth doing is worth doing well.
Ask any married couple who have been together for 20, 30, 40+ years and they'll tell you it's not just an easy ride.
I'm sorry for yet another long winded post, total #TLDNR which is completely understandable and I will shutup now.