Does AI upgrade facilities over long term saves?

Any help would be appreciated. Just wondering if AI improves facilities over time or they stay at the defaults. I understand there are factors involved such as reputation and the like. An example being if you played a Faroe Islands DB and played the game long enought to have multilple CL and EC places,have maxed out your clubs facilities and increased division/nation reputation would the other AI clubs follow or would you have to manage them to get their facilities upgraded. Thanks again for any help.

They improve stadiums sometimes so I would imagine they do

Thanks for that.

Clubs will upgrade facilities, but the country's youth rating, which affects newgen quality, will remain fixed.

Disappointing to hear that. Would have hoped that if a nations reputation improves then so would the newgen quality.

I believe reputation plays some role in it as well, but I'm not sure.

Thanks Franck