Answer:
Yes pretty much.
Both kids and adults can reap *huge* rewards by meditating.
While there are those who would say focus and concentration are required, I would prefer the words, "a non-judgmental, non-forced awareness is required."
There are many different meditation techniques, but all of them have one thing in common: they all cause you to become more self-aware, more watchful of your thoughts, feelings and physical sensations. When you meditate, do not try to stop your mind. Simply watch it.
Some techniques are still: for example, you sit and watch your breath. Others are active, asking you to move, dance, make sounds, etc.
Perhaps the best thing to do is look around at different techniques and find one which "feels right." Then go ahead and try it for a few weeks.