That's a very narrow and non-standard use of the term. The ban here applies to banning the school from providing such books, and I can easily find other examples where "ban" is used to describe restrictions on a school placed by the district or legislature.
- "Across the United States, many states have actively banned the sale of soda in high schools, and evidence suggests that students’ in-school access to soda has declined as a result." https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4658713/
- "Bill Introduced to Ban Sale of Sports Drinks at Schools" https://www.nbcsandiego.com/news/local/bill-introduced-to-ba...
- "Bans on School Junk Food Pay Off in California" https://archive.nytimes.com/well.blogs.nytimes.com/2012/05/0... (that's a state-wide ban)
- "Last year, 44 percent of school districts banned junk food from vending machines, believing that by eliminating unhealthy foods, they'd encourage kids to eat better." https://www.medicaldaily.com/vending-machine-bans-schools-en... (these are district bans)
- In Texas, the "state pulled french fries in 2004 and banned deep frying completely in 2009", https://www.dallasnews.com/news/education/2013/06/28/new-usd...
Just because the school is banned from proving soft drinks, candy bars, sports drinks, and french fries, that doesn't necessarily mean students are prohibited from bringing the same from home.
FWIW, my local library bans children from using the library computers to play fighting and shooting games. That is a ban. Even if a child may play the same game on their own device while at the library.
My library also has video games to check out. If the state made a law prohibiting the library from doing so, yes, that would correctly be called a ban on providing video games.
Those are almost all hyperbolic news articles. News articles are designed to stir emotion. Just because multiple click driven publications misuse a word because it drives clicks doesn't mean that's the proper use of the word. A school "banning" themselves from selling junk food isn't a ban, if they didn't allow students to eat junk food at school, that's a ban. I don't sell junk food, is that a ban because you can't buy junk food from me?
This has all gotten ridiculous.
No. Because no one banned Swahili.
By contrast these books are banned from inclusion in the school library because they have been banned, by policy, from inclusion in the school library.
Not relevant given that I highlighted how the schools were banned either by the district or by state law, not banning themselves.
Which would, per your definition, make it a ban.
Would you prefer seeing only scholarly publications describe it as a ban?
"Do School Junk Food Bans Improve Student Health? Evidence from Canada", in Canadian Public Policy, https://www.utpjournals.press/doi/full/10.3138/cpp.2016-090
"Examining Compliance with a Statewide Law Banning Junk Food and Beverage Marketing in Maine Schools", Public Health Reports, https://journals.sagepub.com/doi/abs/10.1177/003335491212700...
"Banning All Sugar-Sweetened Beverages in Middle Schools", Arch Pediatr Adolesc Med, https://jamanetwork.com/journals/jamapediatrics/fullarticle/...
"Breaking habits: The effect of the French vending machine ban on school snacking and sugar intakes", JOURNAL OF POLICY ANALYSIS AND MANAGEMENT, https://cris.unibo.it/bitstream/11585/606157/6/CapacciS_JPAM... (this banned all vending machines from primary and secondary schools, no matter what was sold).
With a Google Scholar search I could easily give hundreds of similar citations.
> I don't sell junk food, is that a ban because you can't buy junk food from me?
Are you being serious or merely cantankerous?
If the school librarian wants to have keep a copy of the 1975 book "Forever ..." by Judy Blume in circulation, and state law prohibits it, why is that not a ban?
It is, after all, "a prohibition on doing or having something."
If a school want to have a soda vending machine on campus, because of the extra revenue it brings the school, but the district changes policy to prevent that option, why is it not a ban?