In general, a YouTube channel may only have one custom URL and custom URLs cannot be transferred or assigned/reassigned to anyone. More info here: https://goo.gl/MFcSDT . Hope this helps clarify!
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
In general, a YouTube channel may only have one custom URL and custom URLs cannot be transferred or assigned/reassigned to anyone. More info here: https://goo.gl/MFcSDT . Hope this helps clarify!