Imo, 28 is the year your life is no longer fun. So, that's the age to settle down, Invest in a house if you haven't already. Have a baby. Get married. Find a job that doesn't involve retail.
At least that's the year I'd choose to do everything. Not too young, not too old, financially stable. Somewhat of a game plan.
Those who have babies and get married towards the end of HS and their 1st/2nd year of college, are missing out on all the partying, friend time, SCHOOL. I don't know why they do it so early.
And whats disappointing, None of the early marriages I've come across has lasted more than 5 years.