In reply to Osiris:
The ideas and replies in this post could well be combined with another post here on UKC under "Scariest Scrambles" I think I can write to both posted questions and in doing so reply and reinforce several other posted replies. I have climbed for several decades and in the last number of years I do a lot more moderate peak-bagging which often involves some scrambling. I live in British Columbia and 'am active most weekends here and in Washington State.
My partner and I mostly hike, usually for 8 to 12 hours round-trip per day and commonly find the last few hundred feet to a summit is occasionally bare rock with class 3 scrambling and very rarely low class 5 (Yosemite grade) parts. Early season there is usually snow. We go well equipped, carrying proper clothing, plenty of food and appropriate gear, even for an (uncomfortable) night out. We tend to travel light, so we rarely carry a short rope, but when needed we take along instep crampons and ice axes.
There have been several instances when watching her scramble to be the most distressing experience for me. I have told my partner, who is not a rock climber, that I think that un-roped scrambling is far, far more dangerous than most trad climbing. My years of descending loose gullies, traversing "moderate" slopes and "easy" snow have shown me the most hazardous parts are often not exposed and are not that steep. But there are passages of loose rock, damp muddy rock, or ice hidden under snow, which could easily become fatal slips. A fifty foot fall is usually fatal.
So what to do? To me, keep on going out --- it is marvelous being out in the world of nature, weather and non-trivial decisions. But, I hope to be always aware of the dangers and always question my experience. I think Whymper wrote in "Scrambles Amongst the Alps"of being cautious of a simple slip which could lead to disaster.
Get out there!
Andrew