Anyone who played pokemon would've had to use consoles - Gameboy, GameboyColor, GameboyAdvance, NintendoDS, Wii, etc etc.
Consoles are relatively expensive and I've seen a lot of people 'borrow' consoles. But everyone would probably have a PC - whether it be their own, or their family's.
Would it be better if pokemon games were available on PC format? Mac, whatever?