Answer:
I am gentle enough to soothe your skin light enough to fly in the sky and strong enough to crack rocks.
I am a little piece of paper, yet sometimes hold lots of value. I am all you need to get into big events, but will cost you. I am an important part of travel. And if lost, you're not coming. What am I?
When it comes to me you go on red and stop on green.
I say everything I hear to others around. Iām not an animal nor part of the human race. I will immediately repeat after you; But only if my tail is in place.
I tell people to be careful when handling boxes.
Give it food and it will live, give it water and it will die.