PAS Here,
Of Course, at extreme degrees of resistance, dancing gets down-right dangerous. Only skilled professionals use this resistance safely. For the rest of us, too much force will lead to injury.
We used to have a joke “Why do all the Old Guys dance with the pretty young girls?”
Answer: They’ve broken all the others...
Kidding aside, here are some better ideas for handling dancers who need help with key dance elements.
1. Rotate - A good teacher will notice whether a problem persists around one person and will step in to help. (In other words, say nothing and let the teacher fix things).
2. Take the philosophy that “The person dancing that is aware something is wrong adjusts for the other person, rather than correcting them.”
In other words, try to do your part so well that you (are sure you’re not part of the problem) create the perfect situation for your partner to get the feeling of how it works. I think we all enjoy that feeling of achievement when we figure out something on our own.
A beginner is your ultimate chance to perfect your lead, not 5 minutes of torture. Of course, you hope the better partners who dance that evening treat you with this type of respect.
3. Discretely tell the teacher before class that some people in class would benefit from a better explanation / demonstration of principle x. The teacher may or may not help but they at least get helpful feedback about their effectiveness without a particular student being attacked. By the way, teachers only see what the students are doing. They can’t always determine the amount of leading and following actually occurring unless they rotate in with the class.
Any of these are better than criticizing someone, and might just work.
Hope this helps. Wishing you a nice weekend from Los Angeles.
PAS