While living in Maryland I tried to carry a fixed blade. It is legal there as long as it's in plain sight. I loved the whole concept of the sheath knife as there's no hidden areas for dirt, no worry about it folding over at an inconvenient time, and no having to pull open a blade.
In reality, I found it a PITA when getting in and out of some kinds of cars, getting snagged on seat belts, poking me when I sat down on the sofa. And then after using it on something, getting it back in the sheath. Then there was the weird looks, and a few times some store owner just called the police about 'a man with a knife' and they responded with almost a swat team. Never got arrested, but even some cops didn't realize it was legal, and there was the time spent while they looked it up on their computer or called it in. Gave up. Just stuck with a pocket knife for a cutting tool. Never really did think of the knife as any kind of defense weapon.
Now living in Texas, it's weird. I still don't bother with a sheath knife on the belt because now I have a concealed carry permit. Got it when I moved down here, so that is enough to put on a belt. I don't like stuff on my belt, and carry my cell phone in my pocket. But now in Texas, it's legal to open carry a firearm, and people don't look at you twice if you have a Glock on your belt. Different mentality I guess. In Maryland the cops got called for a legal little Buck 102 woodsman, but in Texas a 9mm doesn't get a blink. Go figure.