Re: Why don't we practice chokes?
I like how you bring up panic because you are right, it's a big part of chokes.
Last night I was working out at the bjj club and newer white belt was trying his best to choke me from bad positions. While his chokes were restricting and effecting my ability (purely out of pure brute force on my neck), experience told me to just relax and use my superior position to apply leverage to the right spots and force him to let go. Thinking back to when I first started, I might have tapped out to a choke like that out of pure panic, or gave up my position in some attempt to "escape" the choke. It's not a major skill and nothing anyone who has done judo or bjj for a year shouldn't know already, but it is very vital.
I tried to explain that you should work for superior position then choke, but he gave me a look that said "but this works with the other white belts...".