u/Different-End-4775

I was curious to know if different areas across the US interpret scramble and climbing ratings differently. For example, a class 3 scramble in the Sierras would be a class 4 scramble in the Rockies, or vice-versa. The reason I ask is because I'm in the PNW, and am curious about summiting some other mountains on road trips this summer, but didn't know if there was a regional difference in rating. I didn't include Europe because I'm not familiar with their rating system, but maybe there's a difference across climbing in France vs. Italy vs. Switzerland, or so on?

My girlfriend who is new to skiing asked me how common it was to fall or crash while skiing. I was curious to know because while I can ski expert terrain, I still fall/crash usually 1-3 times every ski day, mostly because I huck myself off jumps or side hits I have no business doing at the end of a long day. How often do you guys fall? My initial thought is that it's like a reverse bell curve. Beginners fall a lot because they're beginners, intermediates don't fall much because they can handle the mellow stuff well, and experts fall more because they pick much harder lines. Any other opinions?