Speaking of Da Rulez, it was decided that they were important enough to be brought up for thread discussion.
Basically, there's no real reason that a Pokémon can't resist after being captured. They can continue to attempt to break the ball indefinitely, if not take off while they're released for battle. So, we can assume that generally, Pokémon that get caught allow themselves to be.
Now, one may well ask, "then why the battle? Why don't they just throw themselves at a Trainer they like?".
In fact, the latter happens in the anime frequently enough, so sometimes that is what happens. But for other situations, strong mons may want to ensure they'd be traveling with a capable Trainer, while weak mons may be attempting to put up enough of a fight to convince
a Trainer to accept them.
That implies, then, that there is a "proper" way to catch a Pokémon. So how would that go? What happens when somebody is caught "unfairly", or, what happens when a "fair catch" turns out to be a sore loser?
(Also, this is from a bit ago, but I theorize that "Starter" and "First Catch" are both significant positions on a Trainer's team. Especially for newer ones; the Starter is able to bridge the human and Pokémon cultures, while the First Catch is experienced with how the Wild world actually works. Street smarts, if you will.)