>>696073And here are my interpretations of young adult Chaz and Mandy
Chaz had a dream: To become a porn director and make hundreds of MILF pornos staring himself as the male star. So he decided to start studying film during school. During this process, he found himself developing a genuine appreciation for the medium, and now has decided that he wants to be a legit director who makes proper films (although that MILF porno gig still sounds good too). Now he has made several short films, usually focusing on comedy and is going to film school. His father is at least happy he seems to be pursuing an actual career instead of just going full coomer. He gets Mandy (and some other North Park friends) to perform in his short comedy films along side him, Jerry as well when he was there, and not off training to be a pilot.
Bad future is the same, however he moved out of North Park to California. He doesn't hang out and make films with his friends, so the films just don't have that same energy they do in the good future.
Mandy started her own blog (or whatever social media they have in the future) where she reviews restaurants. The blog is pretty popular locally, as Mandy has a lot of enthusiasm for food and writing her reviews. Her parents however don't see this as an actual job yet, as she isn't really making money from it. So Shef gets her to work alongside him in the school cafeteria, which Mandy doesn't mind doing too much. While there Mandy acts as a friend to the kids and offers them advice, and a lot of kids end up developing one sided crushes on her.
Bad future is pretty much the same, but without her friends to hang out with she just isn't as happy and satisfied with things. She still loves to write her food blog, and guiding the next generation with advice as she serves them food at school, but she just wishes things could have been different and her friend group didn't split up.