It’s still happening. @TeamYouTube @YTCreators video link: https://youtu.be/4WCGjnFMCi4 the video is definitely not kids content. It’s family/vlogpic.twitter.com/GIQiLi0qC7
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
It's recommending videos based of these you recently watched and these you're subscribed to but it'll only be shown to you.
Nope. Definitely not. I never watch those kinds of videos. 
Then someone in your family did or someone else that you may not know probably have access to your account
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.