You're right. And you may be at more risk as a disabled person. Predators tend to seek those who will cause them the least trouble. Bite back hard and with conviction
Self defense is natural and correct, and if more criminals got hurt violating people, they would learn something. We live in a society where self defense is often seen as immoral (at least where I live).
The gooid news is that you can never have too many knives. You can carry what you like on any given day and you can carry multiple knives if the situation allows. Whatever you choose to carry, keep it handy and keep it sharp.
I tend to think folders are more practical. I usually carry and endura or caly jr. Somethimes I carry my ronin or rat 3, but truthfully, they are too big to be comfortable for me. I would love to live in a jurisdiction that allowed me to carry my sog seal on my leg, but I digress. DC is the pit of the earth for a reason and it is my fault I live here.
I was always a gun person until I found this forum not too long ago. I really thought getting into knives was cheesy. Kinda like some people are into watches. But I have to say, I've bought more knives in the past 6 months than I've ever owned. And to be honest, with the exception of my duty weapon, all my other stuff has been shipped out for long term storage.
Best of luck with whatever you choose to carry and keep us posted.
Best
-Coop