What is up with Disney Channel sitcoms and secret lives?

Seriously, so many Disney Channel shows have some kind of secret they keep from the world. Raven has secret psychic powers, Hannah Montana has a secret identity, The Russos has a family secret as wizards, the James-Jennings kids has to keep their dog talking a secret, K.C. has a secret identity as a spy, even the Madden family has a secret that they’re a supervillain family. Do Disney writers just like keeping secrets?