As builders of web systems, we need to be conscious of which 3rd parties are gaining access to private user data. There's no reason in hell any Google or Facebook widget should be embedded in my health care providers website, yet somehow that's a thing. Any other website is usually even worse.
I personally use NoScript with whitelisted scripts when I know I need them, else I am protected by default. This shouldn't be required, especially for users who have no idea about these scripts and what they actually do.
Fuck that.