I disagree with the bolded and it's portrayal in this show. America has an opiod problem but the demographic it's affecting (middle/rust belt America) is not the same demographic as is depicted in the show (suburban, middle class America outside a major metropolitan area).
There are bits of "this is what happens" that is definitely true, however. There are also aspects of trying to drive certain behaviour as normal. Only thing one could argue is that the show is a microcosm of a larger high school society/experience.
I disagree with this. The middle class definitely has an opoid problem. Kids have very easy access to pills. Also, suburban kids are doing drugs at a young age. I definitely think it's portraying kids "easy access, to drugs, and porn with authenticity". Also, parents have always been gullible to some degree or had little oversight over kids. hell, as kids we told all sorts of lies to go out and party, and evade even the most over protective parents.
I think, this show is realistic as hell in a scary way. Now, are they normalizing this behavior? Somewhat. But then again, I do believe this behavior has become normalized in real life. Technology has really opened the door for kids to get access to all sorts of perversions and trouble.