Thanks for reaching out. YouTube does not subscribe users to channels automatically. This can happen due to third party extensions. Learn more about this here: https://goo.gl/L955kw . Hope this clarifies.
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
Thanks for reaching out. YouTube does not subscribe users to channels automatically. This can happen due to third party extensions. Learn more about this here: https://goo.gl/L955kw . Hope this clarifies.