Сочинение на британском на тему Teenagers today. Помогите пожалуйста)

Many things have changed over the past decades. Same can be said about the life of modern teenagers. Today teens are more independent, have other interests, and are definitely lazier than before. Computer is the root of most changes in the society. Modern teenagers spend almost all their free time online, playing computer games, chatting with friends, surfing social networks, instead of going out and doing some outdoor activities. If you ask a teenager what the life was like twenty or thirty years ago, he wont answer, because he doesnt know. Modern children simply cant imagine their life without cell phones, tablets and MP3 players.