By its very nature, Switch games that are playable docked cannot require the touchscreen, as the dock will cover the entirety of the screen (and it would be blank anyway).
That being said, a game could always provide the option for both touchscreen and button controls, like with Sushi Striker: The Way of Sushido, a game that was built with touch screen in mind. Same goes for Muse Dash, a mobile game ported to the Switch.
If anything the people who want to show off are going to do so even more, because now there will be fewer people doing so. (They're making a mistake. There are lots of people using Nintendo Switch Online, if the big success of Tetris 99 is any indication.)
You could definitely ask for one. I don't know how they do it, but I see it all the time on the GTS.
It's one of those "This is why we can't have nice things" problems combined with "A few bad apples spoil the bunch." It's nothing life-threatening like the Takata air bags or even physically harmful like the PSP shooting discs, but it's one of those things that can ruin the experience for other people since playing with other people is a major part of Pokémon.
When Mario Kart DS came out, you could draw your own profile picture, and it would be displayed to everyone. I loved that. It's just like the avatar system here. But predictably, a minority of people decided they wanted to feel edgy and upsetting and drew pictures of genitals, write swear words, depict gory violence, draw offensive symbols and gestures, etc., and unsurprisingly, the Mario Kart games never had that feature again.
The Alola games gave you a Cosmog--not only did it allow you to register Cosmog and Cosmoem into the Pokédex, but it allowed you to get a second Solgaleo or Lunala, depending on your game. You didn't need to have an event, and it was quite popular to trade Solgaleo for Lunala and vice versa because you could legitimately get a second one. I did it twice, once for Sun and again for Ultra Moon, and I didn't have a problem.
For that matter, I do Wonder Trades a lot. Like, as in hundreds of them for each main series Pokémon game I play. When something is hacked, it's pretty obvious that it is, and I'd say the odds of getting a hacked Pokémon over Wonder Trades is under 5%.
I seldom get any hacked Pokémon. I don't think I'm lucky; I think you're unlucky. The real negative factor to the hacked Pokémon, though, is that it encourages kids to offer their Rattatas and Magikarps and such and ask for Mewtwo and Rayquaza. The hackers will actually fulfill those trades, and it makes the kids think that is normal.
From the perspective of a westerner, yes. In urban Japan, though, where Game Freak is located, the majority of trading actually happens in person, as Pokémon is such a cultural cornerstone there that it's not hard to wander around the streets and find someone else who has a Pokémon game and would like to trade/battle/etc. It's ethnocentrism, but it's something they probably don't even fully realize.
Then again, ethnocentrism is usually something people don't realize. A European who thinks it's a short trip from Dallas to Houston just because they're both in Texas isn't necessarily stupid; they just never gave thought to the differences in scale in the land size. Same with Game Freak. Most people in Game Freak have never stepped foot outside of Japan, and of those that do, most probably have no idea how people play Pokémon in other parts of the world. I would bet you that most of them think non-Japanese trade and battle in person because that's how they do it in Japan--and that most people in Japan think that too (no matter how much folks like James Turner and Lee HyunJung say otherwise).
It's surprisingly painless. I checked on my Switch after about an hour, and it's done.
For something like Pokémon, it's to avoid the server issues that happen every time a new main series game comes out, especially the first of a generation. If the servers don't outright crash like they did with X and Y, it's slowed down tremendously as it's trying to communicate with too many systems at once like with Let's Go!.
Initially, I had intended to wait a couple of days to pre-load it, when fewer people are doing so. It's just like how I'll wait a couple of weeks before watching Frozen 2 because the theaters are going to be way too packed and full of loud children. But as it turns out, the download began immediately after I redeemed my voucher, so, well, here I am.
