There is nothing wrong in imagining which may be different from the main story line but the charecters should follow their original nature.
Some flicks from Ram and Sita's childhood
Ram's childhood memory: One day when Ram was so young may be of 5 years old he was so stubborn and was not having his food. His demand was to get him the moon. Then rani Kaikeyi got an idea and brought a mirror. Then they showed him the moon's reflection in the mirror. the smile on his face at that time was so precious than anything in the world.
Sita's childhood memory: Sita as a small child learnt vedas puranas. She was grown up listening to Ram stories and admired him as an ideal person.
Once Sita was playing along with her sisters and few others they threw the flower ball with which they are playing with such a force that it reached below the table on which Lord Shiv's bow was placed. No one was able to remove the ball then Sita with her one hand gently pushes the table with wheels aside and took the ball. Janak Maharaj was so startled by what Sita did that is when he decided that the one who sets the string to that bow will be the one who marries Sita
I like this show because of its new version in building the story,
moreover we are here discussing The Epic Ramayana because of Siya ke Ram so let us stop mocking and enjoy the show.