
Humans have been made clear to be a different species than beastmen so im sure they understand that they age differently. Humans dont have human rights though either so i can understand why they dont have an established age system for them. I can understand the reasoning haha, it doesnt make it any less weird though sadly.

The humans don't have rights in Cattleton because that country has slavery but I think it is different in other countries. The humans in beastmen world has the same gestation period as Anima and Animus which is 90 days (Spoiler)
cause in the end of the comic it's a month after Chika and Gail have sex and Chika looks like what a person would be in their third trimester.
"15-16 year old adults" is a wild fucking sentence when you consider the fact that most 15-16 year olds just got out of middle school. I am all for world building, but there is no reason your world should consider 15-16 year olds ADULTS.
Officer, yes, these 2 men right here.