You can get these little usb dongles you adhere in the dock that allow you to use just about any controller with it, Ive been using my own 3rd party ps4 controller and a ps5 one. Only downside is it's one controller per dongle but it's a nice option to have and they're just about ￡15 a pop. BOTW and matches like odyssey are EXPERIENCES you can dive into. You've much less in your control, more RNG, mining etc.. (No offence to creature crossing of course, the matches look great)
Among my cousins barely understood what he was doing but had a great time participating with the slightly older children!
Yeah you can lower the settings and make it simpler but unless you're the minority that does not care about losing, then you are competitive. And obviously when you are an adult playing against people who are children or older kids, you are not likely to care about losing.
I know Mario Kart is insanely competitive but I guessed talking about young children (under 4) and older adults who have never gamed I was leaning on the ability for mario kart to be inclusive to a vast assortment of play. There's a place for aggressive kart and then there's letting your young relatives like winning every once in a while perusing beneath the assault of this blue shell you picked up on the first lap and were holding onto only to beating their spirits and show them exactly what the actual world is really like.