So far the news isn't good, here's what DP said:
Not really. Right now changing/preventing the core EA story progression code from modifying careers in any way is fighting a losing battle. Hence why I'm not doing anything other than percentage employment for careers currently.
And here's my reply to that, attempting to go at it from a slightly different angle. I'm not giving up YET! :)
Even up to a flag to keep sims OUT of the career "fair"? I knew careers was a dicey area, but I was hoping the Sims control you have would be enough. No? Bummer.
Worth asking, though. Maybe someday.
I'll let you know if anything changes.
Meanwhile, this may be another one to toss out to the "any takers?" crowd of other talented modders we have doing things for Sims4.
If you're up for a challenge, this or the Master Clubs mod... either would be instant winners, IMO. :) Both would be amazing.