It Would Be Super Effective

Wouldn't it be great if the Pokemon games had some sort of random element to them?

Okay, let me be more specific. What I would like is for when you start a new game in Pokemon, the game randomizes which Pokemon will appear where throughout your journey. Obviously, there would have to be some restrictions. I mean, if you were to run into, say, nothing but Pidgeys and Rattatas for three gyms, that would be unfair. But, if I started a new game in Pokemon Pearl, and after I obtain my first set of Pokeballs, would it not be sweet if I encountered a Gible? Sure, it'd mean I'd get a chance at some fantastic Pokemon right off the bat, but that would certainly encourage replay value, at least for me.

Plus, it would encourage trading, I think. I mean, if my friend and I are only two gyms in and I have a couple Gibles and he has a few Riolus, I would most certainly trade with him as soon as possible.

But this will never happen. It'd be too difficult, and really, how would you catch them all? All the FAQs online for finding Pokemon on specific routes would be useless. Still, it'd be great to have different Pokemon at the beginning to start out with...