>>37350702>Natures>IrrelevantThey dictate whether or not certain stats will be higher or lower than normal. If you don't know what you're doing, you could end up with a nature that goes against your Pokemon's strengths and make battles more difficult, even if only slightly. That's not "irrelevant".
>Complaining about difficulty in the main storyThey were always piss easy from gen 1, these are games designed for children to play on a basic level. The real meat of the game has always been the postgame and competitive play.
Also the EV system changing in the leap from gen 2 to 3 means your Pokemon were overall weaker, stat-wise.