We have open carry just not generalized. You are permitted to open carry to and from fishing, camping, and hunting activities. I’ve done it myself quite often and aside from some strange glances at Publix, most people don’t care.
There does seem to be a direct relationship between the per capita numbers of northerners in a particular region and the probability of having the police called on you anyway, within the bounds of the current law or not.
So in Fl one can always be “going fishing”?