As we briefly mentioned already, people used to use YouTube to upload and view entertaining, funny, and serious videos. These days, there are a lot of people that use YouTube to start YouTube careers through content creation, where they begin a YouTube channel, and then upload videos within their chosen niche. They spend time in the beginning building up their audience base, until they have enough subscribers and watch-time hours to be able to monetize their channel. Once they can monetize their channel they are able to make money from their content through ads.