While he wasn't on speaking terms with them, I'm pretty sure Eiji's parents were both still alive during the events of Kamen Rider OOO. I'm also pretty sure Wataru's mom was still alive by the end of Kiva as well.

And his dad was still alive too, as seen in one of the better episodes of Hibiki post writer changes

I mean, given what little we know of them; I’d place them squarely in the “evil” camp

Probably somewhere along the lines of Lawful/Neutral Evil, since his dad's villainous actions were to boost his political career. Though I guess encouraging a civil war would also be Chaotic Evil.

Asumu isn't a rider though

And I had forgotten about Eiji's father at least being around.

So, I'm 8 episodes into Zero-One, and I noticed that Isamu still has to force open his Progrise Keys.
So, uh, why hasn't he been given authorization by Yui?
Like, so far the most egregious was Kong, which she herself gave him, but he still apparently wasn't authorized to use?

So you know how Yua transforms right? That's the correct way to authorize and transform. Fuwa just chooses to do it his way because yes. Like he's seen her transform at this point, but he just chooses to transform his usual way still.

I know you're early in on the show, but Fuwa's entire character is driven by the fact he can and will do things his own way. That's just Fuwa.

This includes using the Shotriser wrong. Yua tries to explain it to him at one point, too. At multiple points he may or may not have been given authorization, but you're supposed to authorize the Progrise Key by inserting it into the Shotriser first - just like how Yua does it.

It also makes a lot more sense with the Progrise Keys he gets later on.

I actually didn't realize there was a "Correct" way to transform :lol
It does make sense now, though.

I getcha. It does make sense now that I realize he's doing it wrong the entire time as well. I was just assuming that Yua's transformation method was just to give her a distinct way of using the same tool. Knowing now that Fuwa is likely authorized and just doesn't do it right makes more sense, now.

The other funny thing about Fuwa's whole shtick is that since the ForceRisers work the way they do, Aruto and Yua are literally the only people in that initial group of five Riders who are using those Progrise Keys in the intended fashion.