I don't think there's an age timeline for this kind of thing. I don't believe that people should not settle or get married or have kids at certain age or that some things are more suitable to be done at certain age. It would depend on what kind of life the person lead and how far that person develop. Say you start reading self-improvement and philosophy books since you were 15 and been reading and listening to wisdom, internalizing it since that first moment you picked up your first book at the age of 15, I would probably say you'll be more mature than some of the older married people who are way older already. I don't know if it makes sense but I believe that everything progress in different pace and age is doing people no justice.

My mom has a saying: if it's meant to be, it's meant to be. I never thought one day I'll be marrying my fiancee. It was just a summer fling and we were separated for half a year after he left. We're getting married next month so...

Sorry for the rant. Hahaha. Hope you find your person, Jordan :)