The whole porn industry universally has always sold any model who looks young enough (and some who don't) as a "teen". Because that word sells.
Sometimes the industry will sell the same model as a "milf" at the same time as selling her as a "teen".
There doesn't seem to be a word in the industry for beautiful young women in their 20's.
Anyway, that particular mislabelling isn't unique to Pornbox studios.
Model listings in Pornbox with missing age data is something I don't understand.
Presumably Pornbox would want to cover themselves legally by documenting every model's ID, including age, before releasing any of that model's content on the site?
Therefore each model's age (d.o.b) should be a required data entry field in the database before any content could be released?
Maybe they recored it somewhere else, such as an incompatible legacy system which doesn't talk to the main Pornbox system?