Nong isang gabi nag open up sakin ang anak kung 6 years old na may crush daw sya sa school nila . Paano ko ipapaintindi sa kanya ng maayos na he is to young for that matter ?

I totally agree with Mommy Marionette. At his age, if you explain to him about restrictions of having a crush on someone else, hindi pa niya fully maga-grasp yung idea about why he is "too young for that matter" for that very same reason. I guess, what you need to do right now is to just keep on listening to him. Show your interest and just continue guiding him.