The ideas and suggestions of cultBgone & rebel8 towards the topicstarter sounds pretty brainwashing too
I tried to understand your POV and failed. My post says to keep stating the fact that mommy has a belief so the child realizes people can have different beliefs without them being right or facts.
The dictionary disagrees with your definition.
brain wash ing
1. a method for systematically changing attitudes or altering beliefs, originated in totalitarian countries, especially through the use of torture, drugs, or psychological-stress techniques. 2. any method of controlled systematic indoctrination, especially one based on repetition or confusion: brainwashing by TV commercials. 3. an instance of subjecting or being subjected to such techniques: efforts to halt the brainwashing of captive audiences.
Factnet's definition also disagrees with your definition (coercive mind control).