BF Nieces and Nephews and Marriage

Long time watcher, first time poster. It’s been about six years since I first started following Hannah and I have always been so intrigued by her sisters family. Her nieces and nephews pop up after disappearing for 18-21 months on a mission and then they seem to immediately get married. I understand there are parameters as to what’s acceptable for relationships in LDS, but I noticed a comment under one of Zanna’s posts from one of the other kids who recently married about her only having six months left. The insinuation being that she only has six months until she too has to be engaged or married. Does anyone have any insight into this, particularly with LDS in Utah? Is there a specific age these kids are expected to be married by or is it that if they’re in a relationship, they can only remain unmarried for a specific amount of time. I’m so fascinated by it all. It’s easy to notice that their partners/relationships come out of nowhere, and of course social media is only a fraction of a life, but after their marriages their partners/wedding seems to become their entire life, at least on social media. Where kids may have posted friends and school or whatever it always feels like a very sudden and strict change to only their spouses and lots of wedding photos.

Note: I use kids as a general term, of endearment even, I do not mean to demean that they are adults, but heck they’re still very young. Newest daughter in law to vintage-vogues is 19. They are exceptionally young. At their age I always thought about how old and grown up I felt, but looking back, even in my mid 20s, it’s so funny to think about young I still was.

Fascinated! Can anyone provide insights or thoughts?