Needing something installed is vague at best. If I ship python or Java with my program the user doesn't need it installed, if you compile a go or rust program the runtime is statically linked into the program, but it's still there. Additionally while decompiling to Java is trivial it doesn't change the fact that A) there is a compiler B) optimization can be done by the compiler C) compilers for other languages unrelated to Java can be built for the platform D) obfuscated bytecode can be structured in ways impossible to describe with Java source code because the JVM supports features the language does not(jumps, return type method overloading, etc)

Basically the JVM is a platform for running code, yes it has one flagship language and yes they influence each other but they're not exactly one in the same. A similar argument can be made for .NET.

I'm assuming you are not saying "real" languages should be hard to write...

I'm saying they're typically more difficult and have more rules, not that they should be "hard" per-say. I know somone who is a pretty capable lua programmer but gets lost in namespaces, classes, etc. Sure you can OOP in lua and Python but you don't strictly speaking have to. The only other language like that which comes to mind is C++ which has its own challenges. Go isn't OOP but go packages and the requirement for having a package is the kind of extra complexity I'm referring to. Scripting languages typically have a lower barrier to entry, that's all I'm saying.

Objective-C and Go run slower than C and they're all compiled languages. Sure, an interpreter will be slower than a compiled language but modern languages aren't simply interpreted (i.e. JIT, etc).

Yes but also popular languages...I.e CPython and lua are still interpreted.

There are dynamically typed compiled languages, and high level compiled languages.

You're finding counter examples to all my points individually, I'm saying scripting languages usually share many of these traits, that's what makes them fundamentally good at scripting. You probably don't want a scripting language with boiler plate, that needs a compiler, that's statically typed etc. My points aren't traits unique to scripting languages, they're traits shared by basically all of them.

Calling one class of languages "real" and another class something else is inherently demeaning. I wouldn't have cared enough to type this if you used "compiled vs scripting" instead of "real vs scripting". Though I disagree with using "scripting" at all to describe a language since that's an assertion of how you use the language, not of the language itself. "Interpreted" on the other hand is a descriptor of the language itself.

I'm using the language of the post, in real life when talking to people I just call them "scripting languages" or "programming languages" respectively and am hardly ever in a situation where further distinction is required. You're right that scripting language doesn't mean anything other than "good for scripting" but that comes with a bag of traits that make it GOOD for scripting. You don't want to script in C, Java, C#, C++, Go, Rust, etc because usually when people are scripting they want to write code fast, with less in their way, without a compiler, etc. Compiled vs interpreted is only one component of that categorization.

I personally can't stand Java because the language designers decided to remove 'dangerous' features like pointers and unsigned integers because apparently programmers are children who are incapable of handling the risk. On the other hand I love Go. It's high level enough to be enjoyable and easy to write, but if you want to get into the weeds you can.

When I want to get something done that needs C I use C, when I want something fast and easy to write I use Java and then JNI with C if that's needed but honestly it better be a tiny amount of C or I'll go write the whole thing in C. And when I want to make a super short script to do things that scripting is good for I'll use bash or if I need something a bit more "real", to use that term again, I'll use lua. All languages have their place, they're just good at different things.