Recenlty YouTube has added Safe Mode filter for videos. This filter will protect users from obsence and violent video content. Earlier YouTube used to give warning before playing such videos and ask users to sigin to watch such videos.
YouTube has clearly said that no filter is full proof. So it might be possible that the filter will not block all such videos. But I think this Parental Control is a good feature and YouTube really took so much time to include such feature. This feature will control the dynamic nature of YouTube video upto many extent.
To Activate the Filter, just Click on the Link at the bottom of any video page. You can also save your choice with your YouTube password on the browser for future.
Here is the video describing the Safe Mode and How to activate it.
Remember, YouTube is social driven video based community where users are the moderators. If you think or found any obsence or violent video, then you can simply flag that video and you may also Report to YouTube team using their Forum.
Twitter
Facebook
You-tube
Google
Blog