I mean i would start to say that once you pas a certian lifespan and still are physically young (like somewhere past 739 years old but your body is around 40) age as a concept kinda loses its meaning. And since kate is a adult i really dont get why people are being weird about it. Like i could get the argument that you dont shit where you eat but somebody saying: “he should get somebody from his own age” is a bit weird.
Because alt Eve isnt “our” Eve thus she might work diffrent. Only one Angstrom (that i know off) had powers, the others didnt. So maybe alt Eve is just diffrent than our Eve.