Is cavalry combat ability worth getting in the mid to late game?

[Pomeranian]

Considering a lot of your stacks only have 4 cavalry, would cavalry combat ability be worth worrying about? I'm thinking of playing as Kurland and getting quality + aristocratic ideas to get 35% combat ability but I'm wondering whether I should bother.

 

[bly08]

Nope, cavalry isn't even worth building mid to late game unless for unique tags.

 

[KaiserWilhelmI]

I usually just have 4 cavalry for roleplay purposes. Inf+art that's all you really need.