Question 1: We fail to acknowledge fully the destructive power of boredom. Let us note that "boredom" is not the opposite of the common parlance expression of "having fun".
Curiosity is a prevalent (and happy) human trait. It encourages the transition from "look" to "see". In bringing up the very young we must encourage their urge to explore. We must nurture their capacity to observe, to experiment, to project their experience adventurously (conjecture!).
Also we must nurture their capacity to communicate. Here we must recognize that experience comes first and the appropriate language comes second and not vice versa. Thus we must provide early hands-on experience. The more recent bon mot "mind-on" is more suggestive.
Computers may enter naturally and fruitfully only after youngsters understand and master important algorithms. In the beginning computers should be programmed by the student for each algorithm. Then the computer will be appreciated as a tool of extracting incredibly more information out of each procedural invention.
Learning appropriate intelligent use of computers early is very desirable in our computer oriented environment. In particular it provides a basis for mastering the ever more sophisticated uses of computers in science and technology.
Question 5: I was encouraged to do much reading from a very early age. We made use of a subscription library at the age when public library was at its infancy. My interests covered all of science and I did amateur astronomy in my early teens. My early heroes were Faraday and Pierre Curie. I was fortunate to have an early opportunity to study mathematics under mathematicians who were charismatic teachers.