My Pokemon gaming career started on my 11th birthday, when I got my first Pokemon game Ruby. The thing was I started late compared to most people here who normally started at 1st or 2nd Gen. I didn't start on 4th Gen until 2008, when I got my Ice Blue DS Lite and Pearl, and Platinum was added to my collection a year later. I got SoulSilver the year after that shortly after my brother got HeartGold. Then for my 19th birthday I got Black, starting my 5th Gen phase and then got White a few months later. Finally last December I got Black 2 and White 2, which are my current focus until X & Y.
Been playing for around 10 years if you take me turning 21 this year into account.