I stood in awe when I went to Florida.
Umbrellas are for people in cities without real weather. They only work for vertical rain. The pacific northwest often gets rain+wind, which defeats umbrellas. It is also a fashion thing. Ever since GorTex became cheap, everyone wants to look like they climb mountains every weekend. A bright gortex jacket is far more cool than a folding umbrella.
No. Everyone uses umbrellas in nyc and the surrounding metro area. You'll see a bunch of wind damaged umbrellas in garbage cans. A windy day in seattle is like a nice breeze compared to the wind in nyc, especially in winter. Yes, umbrellas are a nightmare when its windy. But people still use umbrellas because it's better to have your pants soaked than to have everything soaked.
But where I live now in Jacksonville, it's not really this way. During the rainiest part of the year, roughly June - September or so, it rains in the afternoon probably 90% of the time, sometimes for an hour, sometimes til night. So there are still different ways of getting into that top 10.