Suspenion of Disbelief and You

I find the taking turns thing fine. It's more of a representation of a fight - not a live action fight. I'm not entirely sure how to describe it...but if you consider a book, for example, reading a fight might sound turn-based (or perhaps CTB/ATB-based, because sometimes someone will strike twice xD).

I love the idea of the post-game though. Optional bosses and the like. If they wanted to rule the world, whew, our heroes would be a little screwed over in the main story. SO3 makes this point...I think the protagonists say something like "Wow, if he'd been that hard in the main game, we'd never have made it this far!" when they encounter a main-game boss in the post-game.

As for the suspension of disbelief, I'm fine with that too. If I've paid for a game, I just want to enjoy it. So unless I enjoy nit picking, I probably won't.
Suspending disbelief becomes increasingly easy, of course.
Perhaps in your first game, carrying 20 of each item (or indeed 99) including armour and weapon might seem a little funny - but you come to expect it after a while.
We make associations as well (and quite rightly so) - in Star Ocean, Till the End of Time, for example, one would assume it'd bear resemblance to other RPGs. Perhaps the Tales of~s series, or the Final Fantasys. So we'd be shocked if Fayt could only carry a measly two Valiant Armours. This helps in suspending the disbelief each time (ie, we only need to do it once). So not only is it necessary...it's easy too. ^ ^;;

On the other hand, if Solid Snake could carry 99 Claymores, we would be rather surprised. xD

Jam it back in, in the dark.

They're probably just taped to the background layer. Maybe nailed, since Mario's fat, and they'd need to support his weight.

There's nowhere I can't reach.

Well. One of their parents is sometimes involved in the story, hence making the protagonist's role special. Like Tidus, for example - he sort of only had a mum, but for a relatively good reason.

But I get what you mean. If they're royalty, they only have a father who promptly dies; if they're a layperson, they only have a mother.
Did Crono have a dad? :x

As for the second question, that's sort of looking at things the wrong way round.
You're watching the story of the hero. You're not watching the story of a randomly selected person. ><;;
Looking back on history, we could study all sorts of things. We could study (insert German name)'s story, or we could study Adolf Hitler's story. It just so happens that the second one is more significant and interesting, so that's the one people write about.

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