Small children probably, they're easily pleased, and have tiny hands.
But weirdly enough they were missing from the reveal trailer. I was expecting happy families, small children, mini games and a really weird gimmick. I was also expecting a brightly colored piece of plastic too. But instead we get a modern (for Nintendo) design, skyrim, and older (for Nintendo) audience.
To me that in-car play screams kids in the back of a car being entertained, not mid twenty hipsters on a road trip. Ipads are popular but I don't think every family has one for each child, and 3ds consoles mean having to buy one each, so rather than argue about who get's to use what they can play together on the switch, makes sense.
yeah, I think the sideway joycons could be a hit with kids. not something for adult hands, I think.
there is a WAY better chance of, say, an 8 year old kid bringing his switch to school/friends house and splitting off the joy pads with a friend rather than... attractive 20 somethings at a rooftop party playing it outside together