I'm counting from when I dropped out of college and started working full-time. Maybe only 21 years ago, it's a little hazy now. I'd been writing code for seven or eight years at that point.
It's pretty impressive, then, and nonetheless, I'm just a lot less impressed when somebody says they have 10 years experience and it equates to 2 years of full time, enterprise or startup experience, and 8 years of "I'm going to school full time and program 3 hours a night." I did program and experiment when I was in my teen years too (late 80s, early 90s) and still cringe when people count that as actual experience. Not that I'm constantly learning and growing at my full time job, but meetings, documentation, paperwork, etc are a large part of the job and count more than not having to bother with it.