Long story short: if you're a child, you don't need to meditate.

One day, my grandmother told me that in the development of every human being, there are 3 stages:

1/ first is childhood, which builds the brain, the identity, the personality, the memory, and the body in order to reach the second stage:

2/ adulthood. That phase starts somewhere during teenage with the development of sexuality, and tops with the creation of a family, and parenthood. And then there is the third stage:

3/ spirituality. That phase is about finding what all that was about. Meditation helps, but it doesn't do it for you, you still have to find out.

Then the problem is: if you discover FIRST what all this “life" was about, would you still play the game? Would you go into sexuality and start a family? And if you don't and “checkout” the game of life by becoming a hermit or a monk, you understand that by doing so you “dead end” your branch on the tree of life?

So if at 8 you understand what life is and how to befriend it, would you still play? I don't think so. That's why it shall never be done.

So, you can't really meditate at 8, nor can you pray at 8. Unless by accident.