My first response is that I would never want to violate any one's First Amendment Rights.
The students in my classes can say and do anything that floats their boat.

However - I do talk about Academic Sources. When they give oral citations I tell them to always use databases like the ones in the library and on line in their course. I help them find one that suits their subject area.
If they use a commercial magazine or periodical they have to explain to me who paid for the story or product placement. We need to not be told to eat more beef from the Meat Packing Industry....
T

Maybe it is not the young who need it, and how about a class explaining Responsible Use of Schooling. and how to be critical of what you are taught in school. Especially for the home schooled.

I'd back it up two or three steps and teach critical thinking skills and a mastery of the main logical fallacies and how to accurately identify them. Social media can be a great vehicle to examine those topics, but it is just an enabler / catalyst to the real problem, which is the death of truth.