About characters lifespan in ck2 and ck3

I remember that in my ck2 plays a lot of characters I played died in their 30s or 40s. That is partly because in ck2, no matter how high the health value is, the characters might die of natural causes if they are unlucky enough. Meanwhile, in ck3 the characters would never die of natural causes unless their health value is lower than 3.0 and there are way more methods to prevent that, through buildings or lifestyle, and more. A character already with red health could switch to health focus and live 30 years more. And characters who are already old and died soon after the start historically, could do this and live much longer. So it's more common in ck3 to have 70s monarchs passing throne to 50s heirs. I prefer the lower lifespan in ck2 because it suits more with real-life medieval age and adds more uncertainty to the gameplay.