That probably would be a better solution. Particularly since the rating system is pretty easy to ignore. And if they do start slapping the R18+ rating on games that don’t really warrant it like Mario Party, people will be more likely to simply dismiss the entire system.
I would hope that the government and ratings board wouldn’t be that stupid, but look at how long it took to give us an R rating for video games in the first place.
This is useful for countries where the Steam Deck is unavailable but other handhelds aren’t. Here in Australia, Steam Decks are only available as grey imports, and that makes warranty issues a potential headache, but you can walk into most electronic retailers and buy a ROG Ally off the shelf.
That said, I personally wouldn’t buy a handheld that didn’t have touchpads, so I bought a grey import and have had no issues.