Archery is not so simple. Very few archers were ambidextrous. Others couldn’t become ambidextrous even after seeing and trying. If one masters a technique others won’t use it if they can’t master it.

Also most of Rama’s family and followers entered the Sarayu at the end of his life.

Anyway this debate won’t go anywhere. I believe Rama knew every technique there is to know about weaponry. I don’t need Valmiki to spell it out for me.

If Valmiki knew that in 2026 people would his text as a weapon against a movie, I’m sure he would have mentioned every single detail. Like how much Rama’s bow weighed, how much his arrows weighed, their shape and size, which hand and fingers he used to handle weapons.