Nintendo announces the Switch 2 [video]

My concern with this is that the joycob being larger won't fit the hands of younger kids anymore. The switch 1 joycon was the only one that allowed reaching the controller buttons and the stick (while held horizontally) for my 3 years old. All other controllers that exist are too big, clearly nobody tested with young children.

And I wish they had names for their arrow buttons, because when held horizontally it makes things very confusing: "press b" what is b?

Fair concern, but on the other hand joycons are seriously uncomfortable for people older than that because of how small they are. It seems reasonable for Nintendo to optimize for the common users, not the extreme minority of small children.