I definitely think it depends on your age. My wife told me I had a year to figure out if I wanted to marry her or not when we started dating. I figured it out in less time than that…we got engaged 7 months after we started dating and got married 7 months after that.
Having said that, we are both in our 30’s. I really think the older you are, the more you know yourself and the less time it takes to know whether you are making the right decision.
My wife thinks noone under 25 should get married. She’s seen too many friends and relatives get married young, then separate or divorce within 2 years. She thinks they barely know who they are at that age, how can they make a lifetime committment.