At this current moment, I own a Karambit, a switchblade Stiletto, a fold out pocket knife and am waiting on a Tantō to arrive just now. So... I may have a problem on my hands.
Look, knives are pretty freaking cool. They're built up over years of cultures and peoples trying to adapt better and better knife designs which is all built up on some beautiful purpose which controls their end design.
Take the karambit for example. It's a curved blade, usually held in reverse grip, with a rine got your index finger. It has one sharp end, on the inside of the curved blade. If you haven't seen a karambit, it more or less looks like a claw. These blades are designed for Filipino Martial Arts, and work best in armed martial arts. Although, I am not trainned in those, I can confidently say, the Karambit is a scary knife.
Because of the curved and reverse griped design, the karambit tends to dig into things, leaving bigger gashes even if it is blunt. Now, this is somewhat helpful, as sharping a karamabit with a whetstone is honestly nightmarish. I almost cut my finger at least twice. But, usually you are supposed to use another method to sharpen your Karamabit, namely a sharping rod, but I don't have one.
One the other end of the globe we have the Stiletto. Now, the original blade was a dagger design, meant for self defence and as an off-hand to a rapier. They eventually become the ladies dagger and than a common switchblade design. Stiletto's are known for being good at thrusting, having a rather thin blade design and a edge on both sides of the blade.
Honestly, the biggest complaint is that swtichblades tend to be already problematic. They can deploy by accident, and if that's in your pocket... well. For example, my brother was fidgeting with a switchblade of his and it accidently opened and nicked his finger. So, be aware that the blade can sometimes suddenly open if you're not careful or if the knife is somewhat lower quality. On top of that, because it's not a stillblade, as in it has many moving parts, it tends to break faster than a stillblade ever will. And lastly, it is sometimes classified as a "concealed weapon" which some countries count as doubly illegal over a normal stillblade.
Not ever country is as lax with knives as mine. I rememer visiting Austrialla and being confused that knives wheren't all that common. Like, I'm not talking an actual, proper knife, I mean like a 10cm with the handle little pocket knife so blunt you can dance on the blades edge safely knife.
But well, I'll probably show back up when I get my Tantō. Hopefully it's a good quality knife and I can sharpen it up easier than my Karambit. And than, I'd have Franch style knife, A Filiopino style knife and a Japanese style knife.
Now, like any thing that is designed to have utility, you have to be careful. Remember, even a blunt knife can hurt you, so be careful even if your entirely convinced that a knife is blunt, treat it like it's sharp. On that point, sharpen your knife. Blunt knives tend to encourage the user to use force to cute, and so you are more likely to accidenly hurt yourself while trying to cut something. Also, point end away from anything you don't really want to run through the pointy end. Also, the sharp edge of the blade should remain away from where you don't want to cat.
I have seen random videos of people saying that there's "non-beginner friendly" knives, but personally I argue that knives should be treated with respect regardless of how "beginner friendly" or "non-beginner friendly" a knife is. Even if you feel like you are familar with the knife, respect it first. Knives are utility but they can hurt someone or yourself if you're not careful, but you don't have to treat them like they're actively evil either.