In our world our lands are littered by roads and cars. Imagine all the dead rattata we'd see on the side of the roads! Along with stantlers, bidoofs, etc.
Someone once told me that Misty's cameos in Advanced Generation help make it easier knowing that she is no longer a series regular. They couldn't have been more wrong. After she leaves behind Togepi she returns to her gym more alone than ever AND ON TOP OF THAT, her last cameo was in 2005. 2005!?!?!? ITS BEEN TEN YEARS SINCE ONE OF THE CAST WHO STARTED THE SHOW WAS ACTUALLY ON THE SHOW!?!?
Why do we even watch Pokemon anymore