I think that’s a problem with using the average age for everything. A bunch of people think their lives peaked in High School and a bunch of other people think it was in their late 20s/early 30s, which averages out to 23. But I suspect almost no one thinks the peak of their life was age 23. Median would be a more appropriate measure here.
It’s alright. Seems like the actors are still trying to find their chemistry with each other but the writers are definitely on the Frasier wavelength.