Porn is a category; apps are a concept
Like age laws for vape pens vs age laws for shopping.
"If porn can be narrowly targeted, why not books?"
You cannot narrowly target a medium.
> "The Act is akin to a law that would require every bookstore to verify the age of every customer at the door"
Presumably for the same reason why libraries can not be targeted narrowly
Apps aren’t a narrow target
It seems to be more about harmonizing Texas law (SB2420) under the constraints of federal law (1A), so we will likely to see this question all the way to the USSC.