As a parent, you are constantly reminded of the future due to the experiences your kids have growing up -- no matter what age they are.
Whether it's losing the first tooth, first steps, first words, getting ears pierced, first dates, etc. you get to experience a slew of firsts. Each remind you of what's to come -- college, marriage, kids, etc.
No matter what, you cant stop the future from coming.
Last night I took the family to Hampton Beach, NH to check out their weekly firework display, play arcade games, have dinner, etc. It was a last minute thing and an attempt to cram in a little more fun before the kids head off to school.
At the end of the night, we were sitting in traffic and the wife and I experienced one if those future reminders.