While Education with less treshold sounds better it should really be redone to make other aspects of the game (like certain FFs) more interesting as well.
The inability to train natives might make sense to some! tastes (i for one don't see such a change as strictly nessesary even from a view of realism but that has been discussed enough and there are valid points for both opinions + your mod is purely optional anyways.) but without a broader education redo it sounds even worse (in terms of getting specialists) than the core game honestly.
I think that for founding fathers alone (schoolhouse in every settlement? What good?) the whole system should instead be done on a per-settlement instead of a colony as a whole basis. (and for many other reasons as well)
That in turn whould allow for a higher treshold for balance again (like 30%, 40% or even as high as 50%) which whould seem necessary as well then.
There are 2 possible ways to approach that thing codewise imo (one easier to code and perhaps better for gameplay, the other sounds more in line with the micro-oriented base of the game):
Option 1 (likely easier to code and better for a quickfix / mod such as this):
Make the whole thing per settlement and let it progress via a pool of the books taken together (so when a certain number of books are attained in a settlement one student will learn a profession and the pool will be emptied + the aim set to a higher treshold. Akin to how crosses work on colony-level.)
No more collection of educational level of the individual student of course.
That might be a tad bit unrealistic but it whould play out nicely.
Option 2 (something like this should imo clearly be done at least by firaxis if its not possible here.):
As now but the treshold is counted per settlement.
That whould also require that colonists with more than one education point allready gained check what is the highest treshold of an institution they have learned in (including their current one they just start to learn on?) and stick with it (to prevent obvious exploits of learning in a higher institution in a settlement with a high treshold and then resettling to another place with a lower treshold getting their degree in an instant.
Or just to lose their educational level after leaving a settlement.)
Both whould require some notekeeping by the game but should! be possible without days of coding if im not utterly mistaken (not that im a coder myself...
).
Is there a flaw in my logic / do other things need to be added to prevent possible exploits seen beforehand?
That whould go a long way in making education a more viable way to get specialists as well as put use in building multiple centers of education and getting education-enhancing FFs.
The second option sounds more in line with how col 2 is designed overall if that whould be doable here it whould be terriffic.
Just do the increase in treshold (+ if necessary adjust the starting one) high enough and it should work out rather nicely imo.
Anything with exploding increase sucks sooner or later and gives no big incentives / rewards for investing more than just marginally in buildings and FFs related to eduacation.
PS: Naturally thanks for trying to fix the game for us.
