Generally legal all over I believe. However each state is different in their “rules”…
TLDR -
a lot of the states make it so cumbersome around open carry that you almost never see it because of how many ancillary rules and regs the state puts around open carry. Things like when you get to your car how you’re supposed to put it away and lock it up, etc. Becomes so much of a hassle that people don’t even do it.
Therefore the government and their intended effect has worked….Where the people just choose not to defend themselves and carry at all.
Psychotic