Yes. A YouTube application can be downloaded from the Nintendo eShop for free.
Yes, you can download the YouTube application for the 2DS. The 2DS is from the same family as the 3DS so it has the same features (except for 3D) and the same gaming capabilities.
No, it does not come with YouTube, nor can you access YouTube on the Nintendo DS
The 3DS Youtube application is free to download on 3DS. Using the service requires a wi-fi connection.
Yes, the 2DS can play 3DS games but just without the 3D.
Yes, the 2DS can play 3DS games as well as DS and DSi games.
Yes, the 2DS can play 3DS games as well as DS and DSi games.
If you didn't like the 3D function or the layout of the 3DS, a possible alternative would be the 2DS. The 2DS is a different version of the 3DS and could be what you are looking for. However if you did not like the 3DS for other reasons, one alternative could be the Sony PlayStation Vita, which just like the 3DS is a hand-held gaming device, but provides other types of games.
Yes, the Nintendo 2DS is compatible with 3DS games. However, autostereoscopic 3D will not function.
Yes, Pokémon Omega Ruby and Pokémon Alpha Sapphire are 3DS games and therefore they're available to be played on any of the Nintendo 3DS or Nintendo 2DS systems that can play 3DS games and that includes Nintendo 3DS, Nintendo 3DS XL, Nintendo 2DS, the New Nintendo 3DS and the New Nintendo 3DS XL.
Yes, you can. There is a headphone jack for the 3DS and 2DS as well.
No, 3DS games only work on the 3DS and 3DS XL as well as the 2DS
No, it's only available on the Switch
As of October 2013, only the 2DS has been announced
Yes, the Nintendo 3DS can play DS games as well as 3DS games in 2D
Yes, the 2DS can play 3DS games since it is basically a 3DS but flat and without 3D.