I had a weird childhood/teen years with parents who only cared about themselves, so bear with me...
My high school boyfriend and I started "dating" when I was a Freshman and he was a Sophomore in high school. My mother and stepfather bought a new house in Oct of my Senior year before selling the one we lived in, so they asked my boyfriend (who was now 19 and had graduated the year before) to move in with me and pay them $500 in rent every month so I could "still go to school and finish out my senior year", even though the new house was only 30 min further and I had my own car. So, we played house for about 5 months before we realized that paying $500 in rent, plus our own groceries, gas, insurance, and car maintenance on both of our 10 year+ cars wasn't so easy on $8.50 and $4.75/hour jobs. We both moved back in with our respective parents by that March. Our son is exactly the same age now, that I was then, and I cannot imagine for a second asking him to have done that this whole past senior year.
Round two....In May the year I turned 19, and he was 20 about to turn 21, we tried it again. We got our own apartment and never looked back. He proposed to me that Christmas, we had a long engagement of 3 years, bought a house when I was 21 and he was almost 23, got married a year later, had DS17 two years after that, had two more kids in the next 6 years, and now we are 3 weeks to the day away from watching my sweet boy graduate high school, my baby girl is graduating 8th grade in just over two weeks, and DS12 will be a 7th grader and I'm sure taller than me by the end of 2018. We will be married for 20 years this July, and together for a total of 28.
Geesh....2018. It seemed SOOOO far away 18 years ago.