Oh my this is so exciting! Brilliant challenge Marian. I'm hoping that my experience with the ten gen townies will help but it never gets easier watching uncontrolled sims play computer games all day instead of what they're supposed to be doing.
The rule would be good if we have to enroll sometime on Tuesday as whatever time that is, term will start the following day so the end date will be the same for all. This will allow for a little flexibility and strategising but also be fair. Giving a specific enrollment time earlier in the day would force us all to change controlled sim at the same time which takes away part of the challenge.
Presumably we'll have to select "enroll for another term" when the option pops up, even though only one of the three will be controlled at the time, otherwise they'd become out of sync which could be exploited. Similarly I presume we can't drop out, reapply, or change courses as that would give more time.