Well reading through this thread some arguments escalated quickly!
To the question, I guess it depends on WHERE in Florida you live as there is a demographic and political change throughout the state.
I currently am living in the panhandle and I see people OC fixed blade knives all the time. Don't think they were longer than 4 inches though, but some had to be close. It is something that I can't recall seeing as often in either Texas or Oklahoma, although it did still happen. To be honest I don't know what the law is about carrying a concealed knife in Florida is but I always carry a Leatherman Wave on my belt and a ~3 inch Buck folder clipped in my front pocket.
My way of thinking is I don't know why I need anyone's damn permission to carry a freakin tool. I grew up carrying knives all the time, and that wasn't all that long ago being I'm in my early 20's. Heck, Back when I was in high school the rednecks would carry knives clipped in their pockets at school and the police officers that worked the schools knew. It never became a problem and the police never said anything unless you had one in your possession and were dumb enough to get in a fight.
Practice doesn't make perfect, it make permanent.
When I hear a Liberal say "I can speak for gun owners because I own a shotgun" I just want to scream "Well I can speak for vegetarians because I like lettuce on my cheeseburger!"