When my kids were getting into the teen years, a TON of people we knew were big into the "Courtship" movement and even advocated for arranged marriages between their Christian kids with their friends Christian kids.
I am always amazed to realize how many of the kids went along with it, even though they'd grown up together and were like family.
I can't imagine being married to the boy that was closest to my age in the families we were friends with! He was like a brother or cousin to me and I like a sister or cousin to him! Weirdness...but, I admit I am being judgy about such things.