"Day 6 of event.. still no Chansey [discussion]"

#PokemonGO: I live in a town that has about 20 pokestops (I know I'm very lucky), yet I haven't seen a single chancey since the event started. Not on the map nor in sighting or near by.. wtf? Anyone else experiencing this? It's kind of annoying when I read a post of people that already caught like 20 yet I still don't have one nor can find one.Edit: thank you for all of your responses, I was not aware that "biomes" were a thing. My town must be a grass biome. I will look more into it so I can finally catch a Chansey!! via /r/pokemongo http://ift.tt/2koph5l