I was a tad late to the Mac--my first was an original LC with System 6 sometime in early 1991 I believe, so that'd add up to about 15 years. It replaced an Apple //c that my family had been using since around 1986 (I was pretty young when we got it, so I can't remember exactly when it was), so you could consider me an apple user for about 20 years, or most of my life.
You know, I remember when System 7 came out that at first I had this "who needs color icons" attitude, and was really reluctant to upgrade. When my family eventually did, I of course started to really appreciate it, at which point I promised myself that however reluctant to change I was, it wasn't really doing me any good. so I should just learn to deal with it as a fact of life.
I can't say I've always used Apple computers, though--my first was a TI-99/4a when I was around 5 or 6--better-than-Atari games, and you could write BASIC programs on its built-in keyboard, too.