Well KsT is leaving almost every path way to each character's development optional. You dont need to go down the certain paths if you dont want to. That's why this game is good. Also that's why i dont get why people whine about this optional stuff. Like Billy for example, you dont need to do Billy scenes at all.
As for income thing, i mean John needs to be divorced and kicked out completely for Jason to step up. From what i gather about Janice, she is a laid back gold digger. I mean unless Jason can get shit load of money to settle her, she will find someone else to do it. Remember we had birthday event and Jason had to beg, steal, pay for some luxury stuff Janice likes.
We can already do porn with Kelly though, since Kelly and Emma are getting even closer together. I can already imagine the set up scene for Emma entering Jason and Kelly's porn world. Like one day after Jason finishes chores for Emma, she will bring up havig financial problems, Jason will talk to Kelly and she will arrange some porn scenes for her
.
Also we still have main plot to be revealed. My gut says either Kelly or Danielle is Jason's bio mother.