So, your kids playing a couple of games proves that touchscreen gaming has in fact displaced all conventional controls?

Someone better go tell the rest of the game industry they're really misallocating their resources.

Dunno about Octopath Traveller, but I have no idea why your kids are playing Captain Toad without the controller, unless you just don't trust them with the controller or something. Camera controls are clearly better with the controllers. Deemo or something like that would be a better example, but it's also clearly an exception.

Yes, road trips, aka ~1% of time owned...

Which could just as easily be fulfilled with a tablet or a phone.

And in the case of valve deck, it even has to compete with the switch in the mobile space. It's a miserable position right out the gate.