Youtube is a very common site like google
Now youtube is like a part of my life and a entertainer for me as I bet for you as well now in today life if you want to buy something than youtube helps you to see the reviews and unboxing of that product and youtube also update your social life like what is happen in all world and what is popular on this world and the most important thing is its totally free. I know some of the videos are only available when you pay to see them but the amount of these types of videos are very less and you can make money on youtube as well by uploading your own videos and many people do this as a job a full time job.
if you want to enjoy youtube services it is available everywhere on mobiles on tv on tablets etc so, just open youtube and see whatever you want to see. thanks and have a nice day