When I was four my mum used to talk to her best friend in English so I couldn't understand them. She felt like I wasn't supposed to know a lot of things even tho all I could care about at that time was wetter or not I'm going to watch the new episode of Pokemons.
So by the time I turned fourteen, she furthered her secrecy speaking to her friends in Greek. SHe successfully acknowledged the fact I've already wrote a book by then (in English) which engaged about 20k readers in its first year. She understood how it came time for me to understand her 'secret language' or in other words the English language.
Nown I've signed up for a class of mister Vanizelous who thought first level Greek at downtown London, not because I still haven't found out the secrets my mother has kept but for I now have a thing or two safely tucked away from the rest of the world.
Yes, I grew up. By that I've earned the right to posses or know things others cannot and should not posses or know.