YouTube is perhaps the biggest source of free streaming content on the internet, as well as being a source of paid content as well. Having access to YouTube can greatly increase the amount of available content.
The YouTube Kids app can be downloaded from Google Play and installed on the Dragon Touch X10 Kids. YouTube Kids only has content that is suitable for kids. Using the parental controls, it will be possible for a parent to allow access to normal YouTube if that is desired, but there is much less control over the content and a greater chance of children finding content that parents consider to be unsuitable for them.