This is probably a daft question but is it possible to restrict you tube settings to make it safer for DS (aged 5) to watch? He generally sticks to watching people build Lego or play doh which is great, but I am worried about what he could stray into via related content. I do supervise his use, but am sometimes unavoidably called away to deal with other DCs so it would be good to know he can't access anything dodgy or with swearing in, for example.