Anyone with an umbrella is a fool. Especially those under 6ft. Anyone under 6ft tall should be banned from using them. So by my logic, mostly men should be using them.
I seriously, with a burning passion, hate the things. They are entirely pointless. Rain of heaviness to require an umbrella usually comes with wind. The larger ones are impossible to take anywhere. The smaller ones do not keep you dry. They brake really easily.... Oh, and... It's only water, for god sake.
If you're using them to shade you from the sun, then I'll let you get away with it. Because the sun is horrible and anyone who likes burning and being a sweaty lump is a complete fool. Shade ftw, but I still wouldn't own one, because they are entirely ****.