Speaking your native language and walking are never taught, but everyone learns both.

Nearly every student wants an iPhone. Once they receive the phone, virtually all will quickly learn how to use it. Kids naturally learn about something they perceive as valuable.

Statists believe that school should be mandatory, otherwise students won't learn. Therefore, the iPhone must be demonized:

"iPhones are bad for kids." "It's an addiction."

The alternative is to admit that mandatory schooling is not needed. 

 I think both is taught by the parents. You correct your children on pronunciation and grammar etc. 

 Je vous recommande *La fabrique du crétin digital * un excellent livre d'un neuroscientifique en langage  informatique .. tous les parents devraient avoir la capacité de pouvoir le lire . 

 Merci beaucoup!