All work and no play makes Jack/Jill a dull boy/girl!!!

That proverb means that children must play apart from working or studying. I have read that children now have a lot of activities: going to school, sports, classes in the afternoon, learning new languages,etc.. we are always doing something, we don´t have time to relax and go out with our friends. 
I think that parents and teachers must know that we have a lot of things to do in the mornings and in the afternoons, they must think before giving us more work to do. We are living in a very competitive society, and people must know about everything, and life can rather stressful.. We can't learn how to play an instrument, playing a sport, studying a lot,...that's impossible.
I think that children must be children, we have to have time to relax, play, and do what we want.