Marriage is hard. Period.
If you get married when you are older, you have to learn to get out of routines and ways of doing things that have become “stuck”. And if you get married when you are young, you don’t quite know yourself and that process can cause conflict in your marriage as you learn about who you are and who your partner is.
So, no matter when or how you get married – there will always be issues to deal with.
I am so glad my husband and I decided to get married when we did. Yes, we were young, but marrying at a young age has given us the opportunity to finish our growing-up years together. We are maturing in our faith and in other ways as a couple, instead of by ourselves. Yes, we’re still developing as individuals, but we’re going to be together as one flesh for the rest of our lives. It just made sense to start that life sooner rather than later.And we don’t regret a minute of it. Sure, we’ve had struggles, and I know we’ll face more that right now I can’t even imagine. But God has already proved himself constantly faithful, even when we ignore him. We can trust absolutely that he has our lives in his hands, and that he will carry us through no matter what life may bring. Reference here.
But, even if you are older when you get married, you can still grow together and mould yourself into each other’s lives – remember, this is a lifetime committment, so make the most of it.