Because that way you can't farm starter pokemon because it requires some commitment to the game in order to trade, furthermore, it helps the player familiarize with the game and in game pokemon values before they can get ripped off
You can capture a pokemon like sentret/furret with an ability called frisk which lets you know if the pokemon is holding an item/what item they are holding. If you get the move called covet/thief both moves let you steal the item of the pokemon. Im not sure if thief works at the moment.
Thief works, I got like 20 leaf stones from eggxecutes in Johto
Found this by the Celadon mall, any ideas?
This is the first I see of it but the path to that area is now blocked, I'm thinking maybe it's time dependent?
Screech, Charm, and Scary Face are actually all very useful moves, although rarely used, and hardly useful in the story mode, they can play a huge role in PvP