Why django admin panel?
Will you have any tutorials where you build your project from ground-up without using of django-admin-panel?
In real world examples nobody* is using it anyway and thus tutorials is the same as any other "build blog in 10 minutes using django" on youtube.
Please consider showing on how to build full application (blog or something similar) without the use of django-admin-panel but where you build your own authorization and administration environment.
Answers
I know several large companies and large products that use the admin.
I know many small companies and small products that use a custom CMS.
I know many companies inbetween that do either/both.
There is no one-size-fits-all approach to building applications, whether for the web, for mobile, or for the desktop. The Django admin, however, is a well-featured, quick solution to most people's needs for data entry. Yes, sometimes you need something custom, and we will cover that, but most of the time you don't. That's why most Django docs and tutorials cover the admin, because it's useful to most people.
Maybe you should try watching the videos before you disparage them. I cover more than just using the admin, but, yes, the admin will be used. Why? Because it's useful and my goal is to show useful, real world examples and techniques.
If you feel like this series isn't going to fulfill whatever learning needs you have, feel free to ignore it and find other guides. I highly recommend Daniel Greenfeld and Audrey Roy's Two Scoops of Django.