I am 46 now. I got my first Amiga, an A1000, back in early 1986 when I was about 25 years old. It was the first computer I felt comfortable with. Previously in college, my only experience with computers was typing programs on dumb terminals, then taking the program, which was on a stack of cards to be processed to see if the program worked. So the Amiga was a real advance for me.
I later got an A2000 which I upgraded with RAM, a hard drive and an A2630 accelerator. I used my Amiga for writing, composing music (Deluxe Music, MIDI) and desktop publishing with ProPage and PageStream. It was the first computer I ever made a buck with: $15 to design a one-page menu, I believe.
I used Amigas continuously until about 1995, then switched over to Windows for job reasons.
I returned to Amigas a little over a year ago, first with Amiga Forever (Cloanto) 2005, then bought my first AGA machine, an A1200. Finally, I succeeded in building an Amithlon which is the closest thing to a modern Amiga that I have.
The Amiga is what got me into my present career, Computer Technical Support for Currency Exchange company. I learned about Operating Systems, GUI's, hardware first on the Amiga, then was able to transfer the knowledge to PC's, DOS and Windows as well as Macs.