Given Ps, you can download a lot of brushes, but where are brushes that stamp out chains, ropes, castles, and footprints? I've seen them around but not from Adobe. Why doesn't Adobe have more variety like this?
Are you sure you are using the right tool for the task?
Illustrator Brushes offer options that elude Photoshop’s Brush Engine (and with good reason).
As for why Adobe does not offer everything you want them to offer: Every product team has limited resources and if the Brush Engine supports the features you need you can create the Brush/es you need yourself.
I've seen them around but not from Adobe. Why doesn't Adobe have more variety like this? ... I've seen some brushes that when you draw it forms a chain or a rope. ... Has anyone else seen brushes like this?
Adobe Illustrator has brushes for ropes and chains. I have not seen them in Adobe Photoshop. In addition, in Adobe Illustrator you can take any artwork and turn it into a brush.
People make their own brushes - I have a bunch like you described. If you don't want to DIY, I'm sure you can do a search and find free ones to download. Once you start making your own, it's addictive. I have a really old video on youtube that shows you how https://www.youtube.com/user/melissapiccone
Melissa Piccone | Adobe Certified Instructor | Adobe User Group Manager
I am an Adobe Certified Instructor, Adobe User Group Manager and an Adobe Certified Professional. I love to teach. I teach Photoshop, Illustrator, InDesign, Dreamweaver and Acrobat. I hope you enjoy my videos. Feel free to contact me with questions, requests for tutorials and training. I ...