Back when I was mostly jobless, I would go to a facility in Lakeforest Mall, Gaithersburg, MD run by the Montgomery County Public Libraries. While there, one day, hopefully job searching, when my time was up, I overheard about somebody looking at pr0n on one of the computers. I suggested to the lady in charge that the facility could put filters on the computers to block pr0n. She went ballistic. Imagine a little Asian lady going ballistic (not yelling, but quite strident) about supposed First Amendment protections for pr0n!
This was in the late 1990s, BTW.
The main library in my large metro Texas city has become a haven for homeless vagrants and homosexuals cruising for hookups. And the library does nothing about it.
I read on a Yelp review one reviewer saying she saw a “patron” jacking off in one of the book sections.
It’s legal to look at it but not to download it.
I was in a computer “cafe” years ago and someone was downloading porn. The guy at the next computer called the police, who came and took the porn guy away, and left an officer there to guard the computer till the computer unit of the NYPD could arrive.
The language she was using on her cellphone was not to be believed, but they did their job.