Bob,
A few years back, as I was climbing Mt. Baldy a woman glissaded by me with an axe in a position I have never seen and her crampons on. This was a steep section and very fast. She asked, "Am I doing this right?" Nooooo!!! I replied. This was the first time I climbed the Bowl...I swore I would never come back on a weekend. I made the mistake of going again this past winter and had a woman slid by me with her finest Microspikes and trekking poles...and she was not the worst prepared person on the mountain. This time I mean it...I ain't going anywhere near that mountain on the weekends.
The biggest danger is people. People who do what they want to do, when they want to do it with gear they have no experience with. Good luck convincing them they are putting themselves at risk.
You can rent your dull aluminum crampons at Elevations in Lone Pine; however, you can not rent experience and self arrest skills at the same location...those you need to purchase with time spent on your local mountains in the winter.
