I often encountered this in the offices where I worked. There is also a pipeline factor, when employees are stupidly accustomed to performing a task on the old and do not want to learn something new.

Why, then, do so many continue to use it? Because when you have a pipeline, deadlines and so on, it's very difficult to quickly switch to a new one. For me personally, this is a significant factor to abandon a program in favor of one that is constantly evolving and you can also somehow influence development, instantly get an answer to the question you need, implement what you like and feel comfortable with. This was personally told to me by several groomers I know from different studios, and Jesus Fernandez also once wrote about this in Grooming Artist on Facebook. It is not used in production, as there are problems with animation. That is, starting from 2016, nothing new has come out, and Interactive Groom has a bunch of bugs in general and a lot of things have not been completed there. In 2016, Xgen was closed and there is no official support now. Although now, after having made a subscription to Ornatirx - I don't see any problem. Because Maya comes with built-in Xgen and you only have to pay for a subscription. Ornatrix has to be paid for and not everyone wants to do it. Many studios from Hollywood, various large studios around the world - they still use it, many foreigners teach it at school, because top studios use it, because Xgen is implemented for free in Maya and this of course captivates many.

Ornatrix vs xgen compare