We use YouTube for video sharing, it is the now good platform of earning, and use for entertainment and fun, it is also use for study and skill improvement e.t.c
It is also a good sorce of viral marketing and it help to become a famous .but is a free site so sometimes the young generation will get bad example from the video, there are many sexual harassment clip which is not sutable for the young age user and many more problems, but it is a good site for entertainment, and so helful for learn new things.