... To be frank, at times I doubt we really know or have ever seen Athena. It's just Saori all over the place trying to act as the goddess she's supposed to be.

[He grimaces at the thought.]

While it's clear that she is Athena and has her Cosmos and all. I don't think the person acting most of the time is really Athena, she has never transmitted the same feeling as her Cosmos does when she talks or acts most of the time.

So rather than grow up, she should just stop playing pretend and become the real Athena completely.