Again, you'd be amazed at what people who don't actually put it in practice don't know when it comes to getting physical.
Plus some people aren't strikers. I can't remember the last time I punched anyone in the face with intent. I was always the smaller guy, and you're not gonna outpunch a bigger guy. So my method always was, get in close on a guy and get a death grip on his windpipe, dig the nails in just a little bit to let them know you're serious. You'll get hit, quite a lot at first, but if you can shrug it off they'll quickly start to panic from the lack of oxygen, at which point you can do whatever you want to them.
BUT, not everybody is a "Take 10 to give 1" kinda guy. I'm just kind of the type where if I'm mad enough to fight someone I'm also mad enough to not feel pain anymore. Otherwise, kinda hard to keep your grip on someone's throat while they're hitting you in the face and head. BUT if you can do it and just power through that first 15 seconds or so you can pretty much do anything and they'll just gasp and flop around while you do it.
But yeah, not a big punching guy, personally.
Like I've had some boxing training but I've never had to use it in a real fight and I have no idea what I would do if it ever came up. Last time I was in a scrap I did what I always do. Still works, I figure why change it up now?
Fun Fact: People also get really squeamish and whiny if you start going near their jugular with your teeth. Everybody just wants to slap hands. Pussy sh*t. If you're not trying to do permanent damage then you really shouldn't even be fighting in the first place or else you're just posing and posturing.
People also start losing their sh*t if you stick your thumb under their eyeball. Like c'mon, what are we even doing? F*cking babies.