Parents of teenagers should watch and ideally get their teenagers to watch too (even if it's by themselves in their room). it's good enough to keep them interested (which btw is actually very high praise for all concerned).
Teenagers will cringe and probably even nod knowingly at some of it.
Parents will feel horrified and possibly guilty and fearful.
Opportunities to talk meaningfully to my teenager (where we both actually learn something about each other's lives) don't crop up every day. Any discussions about parenting and online content can often stressful ones so the chance to discuss the subject calmly within the confines of someone else's story is priceless.
Even if they roll their eyes and tell you to chill.
Well done and thanks to Stephen Graham and the cast.