Hey, I'm just pointing it out. It's the Galarians that are doing the evil deeds here.
And I don't see why you couldn't camp in the city or the wasteland. The wasteland would be rough, but in the city it wouldn't be horrible. I mean there wouldn't be any resources to gather in either places, but nothings stopping you from throwing up a tent, making a fire and cooking on the spot.
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Also I saw someone's art on reddit and besides being beautiful, it does make me wonder how much more there is to the Galar dex. The Alolan dex was pretty big(roughly 100~ pokemon if you include Alolan forms), so I feel as if this gen we might end up with a smaller batch of pokemon being introduced.
Besides that, I don't think they're capable of not showing off every new Pokemon in a trailer before the games come out.